How to use getPreviousEquivalentPoint method in wpt

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aryeh_implementation.js

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...3520 }3521 // "Return null."3522 return null;3523}3524function getPreviousEquivalentPoint(node, offset) {3525 // "If node's length is zero, return null."3526 if (getNodeLength(node) == 0) {3527 return null;3528 }3529 // "If offset is 0, and node's parent is not null, and node is an inline3530 // node, return (node's parent, node's index)."3531 if (offset == 03532 && node.parentNode3533 && isInlineNode(node)) {3534 return [node.parentNode, getNodeIndex(node)];3535 }3536 // "If node has a child with index offset − 1, and that child's length is3537 // not zero, and that child is an inline node, return (that child, that3538 // child's length)."3539 if (0 <= offset - 13540 && offset - 1 < node.childNodes.length3541 && getNodeLength(node.childNodes[offset - 1]) != 03542 && isInlineNode(node.childNodes[offset - 1])) {3543 return [node.childNodes[offset - 1], getNodeLength(node.childNodes[offset - 1])];3544 }3545 // "Return null."3546 return null;3547}3548function getFirstEquivalentPoint(node, offset) {3549 // "While (node, offset)'s previous equivalent point is not null, set3550 // (node, offset) to its previous equivalent point."3551 var prev;3552 while (prev = getPreviousEquivalentPoint(node, offset)) {3553 node = prev[0];3554 offset = prev[1];3555 }3556 // "Return (node, offset)."3557 return [node, offset];3558}3559function getLastEquivalentPoint(node, offset) {3560 // "While (node, offset)'s next equivalent point is not null, set (node,3561 // offset) to its next equivalent point."3562 var next;3563 while (next = getNextEquivalentPoint(node, offset)) {3564 node = next[0];3565 offset = next[1];3566 }3567 // "Return (node, offset)."3568 return [node, offset];3569}3570//@}3571///// Block-extending a range /////3572//@{3573// "A boundary point (node, offset) is a block start point if either node's3574// parent is null and offset is zero; or node has a child with index offset −3575// 1, and that child is either a visible block node or a visible br."3576function isBlockStartPoint(node, offset) {3577 return (!node.parentNode && offset == 0)3578 || (0 <= offset - 13579 && offset - 1 < node.childNodes.length3580 && isVisible(node.childNodes[offset - 1])3581 && (isBlockNode(node.childNodes[offset - 1])3582 || isHtmlElement(node.childNodes[offset - 1], "br")));3583}3584// "A boundary point (node, offset) is a block end point if either node's3585// parent is null and offset is node's length; or node has a child with index3586// offset, and that child is a visible block node."3587function isBlockEndPoint(node, offset) {3588 return (!node.parentNode && offset == getNodeLength(node))3589 || (offset < node.childNodes.length3590 && isVisible(node.childNodes[offset])3591 && isBlockNode(node.childNodes[offset]));3592}3593// "A boundary point is a block boundary point if it is either a block start3594// point or a block end point."3595function isBlockBoundaryPoint(node, offset) {3596 return isBlockStartPoint(node, offset)3597 || isBlockEndPoint(node, offset);3598}3599function blockExtend(range) {3600 // "Let start node, start offset, end node, and end offset be the start3601 // and end nodes and offsets of the range."3602 var startNode = range.startContainer;3603 var startOffset = range.startOffset;3604 var endNode = range.endContainer;3605 var endOffset = range.endOffset;3606 // "If some ancestor container of start node is an li, set start offset to3607 // the index of the last such li in tree order, and set start node to that3608 // li's parent."3609 var liAncestors = getAncestors(startNode).concat(startNode)3610 .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3611 .slice(-1);3612 if (liAncestors.length) {3613 startOffset = getNodeIndex(liAncestors[0]);3614 startNode = liAncestors[0].parentNode;3615 }3616 // "If (start node, start offset) is not a block start point, repeat the3617 // following steps:"3618 if (!isBlockStartPoint(startNode, startOffset)) do {3619 // "If start offset is zero, set it to start node's index, then set3620 // start node to its parent."3621 if (startOffset == 0) {3622 startOffset = getNodeIndex(startNode);3623 startNode = startNode.parentNode;3624 // "Otherwise, subtract one from start offset."3625 } else {3626 startOffset--;3627 }3628 // "If (start node, start offset) is a block boundary point, break from3629 // this loop."3630 } while (!isBlockBoundaryPoint(startNode, startOffset));3631 // "While start offset is zero and start node's parent is not null, set3632 // start offset to start node's index, then set start node to its parent."3633 while (startOffset == 03634 && startNode.parentNode) {3635 startOffset = getNodeIndex(startNode);3636 startNode = startNode.parentNode;3637 }3638 // "If some ancestor container of end node is an li, set end offset to one3639 // plus the index of the last such li in tree order, and set end node to3640 // that li's parent."3641 var liAncestors = getAncestors(endNode).concat(endNode)3642 .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3643 .slice(-1);3644 if (liAncestors.length) {3645 endOffset = 1 + getNodeIndex(liAncestors[0]);3646 endNode = liAncestors[0].parentNode;3647 }3648 // "If (end node, end offset) is not a block end point, repeat the3649 // following steps:"3650 if (!isBlockEndPoint(endNode, endOffset)) do {3651 // "If end offset is end node's length, set it to one plus end node's3652 // index, then set end node to its parent."3653 if (endOffset == getNodeLength(endNode)) {3654 endOffset = 1 + getNodeIndex(endNode);3655 endNode = endNode.parentNode;3656 // "Otherwise, add one to end offset.3657 } else {3658 endOffset++;3659 }3660 // "If (end node, end offset) is a block boundary point, break from3661 // this loop."3662 } while (!isBlockBoundaryPoint(endNode, endOffset));3663 // "While end offset is end node's length and end node's parent is not3664 // null, set end offset to one plus end node's index, then set end node to3665 // its parent."3666 while (endOffset == getNodeLength(endNode)3667 && endNode.parentNode) {3668 endOffset = 1 + getNodeIndex(endNode);3669 endNode = endNode.parentNode;3670 }3671 // "Let new range be a new range whose start and end nodes and offsets3672 // are start node, start offset, end node, and end offset."3673 var newRange = startNode.ownerDocument.createRange();3674 newRange.setStart(startNode, startOffset);3675 newRange.setEnd(endNode, endOffset);3676 // "Return new range."3677 return newRange;3678}3679function followsLineBreak(node) {3680 // "Let offset be zero."3681 var offset = 0;3682 // "While (node, offset) is not a block boundary point:"3683 while (!isBlockBoundaryPoint(node, offset)) {3684 // "If node has a visible child with index offset minus one, return3685 // false."3686 if (0 <= offset - 13687 && offset - 1 < node.childNodes.length3688 && isVisible(node.childNodes[offset - 1])) {3689 return false;3690 }3691 // "If offset is zero or node has no children, set offset to node's3692 // index, then set node to its parent."3693 if (offset == 03694 || !node.hasChildNodes()) {3695 offset = getNodeIndex(node);3696 node = node.parentNode;3697 // "Otherwise, set node to its child with index offset minus one, then3698 // set offset to node's length."3699 } else {3700 node = node.childNodes[offset - 1];3701 offset = getNodeLength(node);3702 }3703 }3704 // "Return true."3705 return true;3706}3707function precedesLineBreak(node) {3708 // "Let offset be node's length."3709 var offset = getNodeLength(node);3710 // "While (node, offset) is not a block boundary point:"3711 while (!isBlockBoundaryPoint(node, offset)) {3712 // "If node has a visible child with index offset, return false."3713 if (offset < node.childNodes.length3714 && isVisible(node.childNodes[offset])) {3715 return false;3716 }3717 // "If offset is node's length or node has no children, set offset to3718 // one plus node's index, then set node to its parent."3719 if (offset == getNodeLength(node)3720 || !node.hasChildNodes()) {3721 offset = 1 + getNodeIndex(node);3722 node = node.parentNode;3723 // "Otherwise, set node to its child with index offset and set offset3724 // to zero."3725 } else {3726 node = node.childNodes[offset];3727 offset = 0;3728 }3729 }3730 // "Return true."3731 return true;3732}3733//@}3734///// Recording and restoring overrides /////3735//@{3736function recordCurrentOverrides() {3737 // "Let overrides be a list of (string, string or boolean) ordered pairs,3738 // initially empty."3739 var overrides = [];3740 // "If there is a value override for "createLink", add ("createLink", value3741 // override for "createLink") to overrides."3742 if (getValueOverride("createlink") !== undefined) {3743 overrides.push(["createlink", getValueOverride("createlink")]);3744 }3745 // "For each command in the list "bold", "italic", "strikethrough",3746 // "subscript", "superscript", "underline", in order: if there is a state3747 // override for command, add (command, command's state override) to3748 // overrides."3749 ["bold", "italic", "strikethrough", "subscript", "superscript",3750 "underline"].forEach(function(command) {3751 if (getStateOverride(command) !== undefined) {3752 overrides.push([command, getStateOverride(command)]);3753 }3754 });3755 // "For each command in the list "fontName", "fontSize", "foreColor",3756 // "hiliteColor", in order: if there is a value override for command, add3757 // (command, command's value override) to overrides."3758 ["fontname", "fontsize", "forecolor",3759 "hilitecolor"].forEach(function(command) {3760 if (getValueOverride(command) !== undefined) {3761 overrides.push([command, getValueOverride(command)]);3762 }3763 });3764 // "Return overrides."3765 return overrides;3766}3767function recordCurrentStatesAndValues() {3768 // "Let overrides be a list of (string, string or boolean) ordered pairs,3769 // initially empty."3770 var overrides = [];3771 // "Let node be the first formattable node effectively contained in the3772 // active range, or null if there is none."3773 var node = getAllEffectivelyContainedNodes(getActiveRange())3774 .filter(isFormattableNode)[0];3775 // "If node is null, return overrides."3776 if (!node) {3777 return overrides;3778 }3779 // "Add ("createLink", node's effective command value for "createLink") to3780 // overrides."3781 overrides.push(["createlink", getEffectiveCommandValue(node, "createlink")]);3782 // "For each command in the list "bold", "italic", "strikethrough",3783 // "subscript", "superscript", "underline", in order: if node's effective3784 // command value for command is one of its inline command activated values,3785 // add (command, true) to overrides, and otherwise add (command, false) to3786 // overrides."3787 ["bold", "italic", "strikethrough", "subscript", "superscript",3788 "underline"].forEach(function(command) {3789 if (commands[command].inlineCommandActivatedValues3790 .indexOf(getEffectiveCommandValue(node, command)) != -1) {3791 overrides.push([command, true]);3792 } else {3793 overrides.push([command, false]);3794 }3795 });3796 // "For each command in the list "fontName", "foreColor", "hiliteColor", in3797 // order: add (command, command's value) to overrides."3798 ["fontname", "fontsize", "forecolor", "hilitecolor"].forEach(function(command) {3799 overrides.push([command, commands[command].value()]);3800 });3801 // "Add ("fontSize", node's effective command value for "fontSize") to3802 // overrides."3803 overrides.push(["fontsize", getEffectiveCommandValue(node, "fontsize")]);3804 // "Return overrides."3805 return overrides;3806}3807function restoreStatesAndValues(overrides) {3808 // "Let node be the first formattable node effectively contained in the3809 // active range, or null if there is none."3810 var node = getAllEffectivelyContainedNodes(getActiveRange())3811 .filter(isFormattableNode)[0];3812 // "If node is not null, then for each (command, override) pair in3813 // overrides, in order:"3814 if (node) {3815 for (var i = 0; i < overrides.length; i++) {3816 var command = overrides[i][0];3817 var override = overrides[i][1];3818 // "If override is a boolean, and queryCommandState(command)3819 // returns something different from override, call3820 // execCommand(command)."3821 if (typeof override == "boolean"3822 && myQueryCommandState(command) != override) {3823 myExecCommand(command);3824 // "Otherwise, if override is a string, and command is neither3825 // "createLink" nor "fontSize", and queryCommandValue(command)3826 // returns something not equivalent to override, call3827 // execCommand(command, false, override)."3828 } else if (typeof override == "string"3829 && command != "createlink"3830 && command != "fontsize"3831 && !areEquivalentValues(command, myQueryCommandValue(command), override)) {3832 myExecCommand(command, false, override);3833 // "Otherwise, if override is a string; and command is3834 // "createLink"; and either there is a value override for3835 // "createLink" that is not equal to override, or there is no value3836 // override for "createLink" and node's effective command value for3837 // "createLink" is not equal to override: call3838 // execCommand("createLink", false, override)."3839 } else if (typeof override == "string"3840 && command == "createlink"3841 && (3842 (3843 getValueOverride("createlink") !== undefined3844 && getValueOverride("createlink") !== override3845 ) || (3846 getValueOverride("createlink") === undefined3847 && getEffectiveCommandValue(node, "createlink") !== override3848 )3849 )) {3850 myExecCommand("createlink", false, override);3851 // "Otherwise, if override is a string; and command is "fontSize";3852 // and either there is a value override for "fontSize" that is not3853 // equal to override, or there is no value override for "fontSize"3854 // and node's effective command value for "fontSize" is not loosely3855 // equivalent to override:"3856 } else if (typeof override == "string"3857 && command == "fontsize"3858 && (3859 (3860 getValueOverride("fontsize") !== undefined3861 && getValueOverride("fontsize") !== override3862 ) || (3863 getValueOverride("fontsize") === undefined3864 && !areLooselyEquivalentValues(command, getEffectiveCommandValue(node, "fontsize"), override)3865 )3866 )) {3867 // "Convert override to an integer number of pixels, and set3868 // override to the legacy font size for the result."3869 override = getLegacyFontSize(override);3870 // "Call execCommand("fontSize", false, override)."3871 myExecCommand("fontsize", false, override);3872 // "Otherwise, continue this loop from the beginning."3873 } else {3874 continue;3875 }3876 // "Set node to the first formattable node effectively contained in3877 // the active range, if there is one."3878 node = getAllEffectivelyContainedNodes(getActiveRange())3879 .filter(isFormattableNode)[0]3880 || node;3881 }3882 // "Otherwise, for each (command, override) pair in overrides, in order:"3883 } else {3884 for (var i = 0; i < overrides.length; i++) {3885 var command = overrides[i][0];3886 var override = overrides[i][1];3887 // "If override is a boolean, set the state override for command to3888 // override."3889 if (typeof override == "boolean") {3890 setStateOverride(command, override);3891 }3892 // "If override is a string, set the value override for command to3893 // override."3894 if (typeof override == "string") {3895 setValueOverride(command, override);3896 }3897 }3898 }3899}3900//@}3901///// Deleting the selection /////3902//@{3903// The flags argument is a dictionary that can have blockMerging,3904// stripWrappers, and/or direction as keys.3905function deleteSelection(flags) {3906 if (flags === undefined) {3907 flags = {};3908 }3909 var blockMerging = "blockMerging" in flags ? Boolean(flags.blockMerging) : true;3910 var stripWrappers = "stripWrappers" in flags ? Boolean(flags.stripWrappers) : true;3911 var direction = "direction" in flags ? flags.direction : "forward";3912 // "If the active range is null, abort these steps and do nothing."3913 if (!getActiveRange()) {3914 return;3915 }3916 // "Canonicalize whitespace at the active range's start."3917 canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);3918 // "Canonicalize whitespace at the active range's end."3919 canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset);3920 // "Let (start node, start offset) be the last equivalent point for the3921 // active range's start."3922 var start = getLastEquivalentPoint(getActiveRange().startContainer, getActiveRange().startOffset);3923 var startNode = start[0];3924 var startOffset = start[1];3925 // "Let (end node, end offset) be the first equivalent point for the active3926 // range's end."3927 var end = getFirstEquivalentPoint(getActiveRange().endContainer, getActiveRange().endOffset);3928 var endNode = end[0];3929 var endOffset = end[1];3930 // "If (end node, end offset) is not after (start node, start offset):"3931 if (getPosition(endNode, endOffset, startNode, startOffset) !== "after") {3932 // "If direction is "forward", call collapseToStart() on the context3933 // object's Selection."3934 //3935 // Here and in a few other places, we check rangeCount to work around a3936 // WebKit bug: it will sometimes incorrectly remove ranges from the3937 // selection if nodes are removed, so collapseToStart() will throw.3938 // This will break everything if we're using an actual selection, but3939 // if getActiveRange() is really just returning globalRange and that's3940 // all we care about, it will work fine. I only add the extra check3941 // for errors I actually hit in testing.3942 if (direction == "forward") {3943 if (getSelection().rangeCount) {3944 getSelection().collapseToStart();3945 }3946 getActiveRange().collapse(true);3947 // "Otherwise, call collapseToEnd() on the context object's Selection."3948 } else {3949 getSelection().collapseToEnd();3950 getActiveRange().collapse(false);3951 }3952 // "Abort these steps."3953 return;3954 }3955 // "If start node is a Text node and start offset is 0, set start offset to3956 // the index of start node, then set start node to its parent."3957 if (startNode.nodeType == Node.TEXT_NODE3958 && startOffset == 0) {3959 startOffset = getNodeIndex(startNode);3960 startNode = startNode.parentNode;3961 }3962 // "If end node is a Text node and end offset is its length, set end offset3963 // to one plus the index of end node, then set end node to its parent."3964 if (endNode.nodeType == Node.TEXT_NODE3965 && endOffset == getNodeLength(endNode)) {3966 endOffset = 1 + getNodeIndex(endNode);3967 endNode = endNode.parentNode;3968 }3969 // "Call collapse(start node, start offset) on the context object's3970 // Selection."3971 getSelection().collapse(startNode, startOffset);3972 getActiveRange().setStart(startNode, startOffset);3973 // "Call extend(end node, end offset) on the context object's Selection."3974 getSelection().extend(endNode, endOffset);3975 getActiveRange().setEnd(endNode, endOffset);3976 // "Let start block be the active range's start node."3977 var startBlock = getActiveRange().startContainer;3978 // "While start block's parent is in the same editing host and start block3979 // is an inline node, set start block to its parent."3980 while (inSameEditingHost(startBlock, startBlock.parentNode)3981 && isInlineNode(startBlock)) {3982 startBlock = startBlock.parentNode;3983 }3984 // "If start block is neither a block node nor an editing host, or "span"3985 // is not an allowed child of start block, or start block is a td or th,3986 // set start block to null."3987 if ((!isBlockNode(startBlock) && !isEditingHost(startBlock))3988 || !isAllowedChild("span", startBlock)3989 || isHtmlElement(startBlock, ["td", "th"])) {3990 startBlock = null;3991 }3992 // "Let end block be the active range's end node."3993 var endBlock = getActiveRange().endContainer;3994 // "While end block's parent is in the same editing host and end block is3995 // an inline node, set end block to its parent."3996 while (inSameEditingHost(endBlock, endBlock.parentNode)3997 && isInlineNode(endBlock)) {3998 endBlock = endBlock.parentNode;3999 }4000 // "If end block is neither a block node nor an editing host, or "span" is4001 // not an allowed child of end block, or end block is a td or th, set end4002 // block to null."4003 if ((!isBlockNode(endBlock) && !isEditingHost(endBlock))4004 || !isAllowedChild("span", endBlock)4005 || isHtmlElement(endBlock, ["td", "th"])) {4006 endBlock = null;4007 }4008 // "Record current states and values, and let overrides be the result."4009 var overrides = recordCurrentStatesAndValues();4010 // "If start node and end node are the same, and start node is an editable4011 // Text node:"4012 if (startNode == endNode4013 && isEditable(startNode)4014 && startNode.nodeType == Node.TEXT_NODE) {4015 // "Call deleteData(start offset, end offset − start offset) on start4016 // node."4017 startNode.deleteData(startOffset, endOffset - startOffset);4018 // "Canonicalize whitespace at (start node, start offset), with fix4019 // collapsed space false."4020 canonicalizeWhitespace(startNode, startOffset, false);4021 // "If direction is "forward", call collapseToStart() on the context4022 // object's Selection."4023 if (direction == "forward") {4024 if (getSelection().rangeCount) {4025 getSelection().collapseToStart();4026 }4027 getActiveRange().collapse(true);4028 // "Otherwise, call collapseToEnd() on the context object's Selection."4029 } else {4030 getSelection().collapseToEnd();4031 getActiveRange().collapse(false);4032 }4033 // "Restore states and values from overrides."4034 restoreStatesAndValues(overrides);4035 // "Abort these steps."4036 return;4037 }4038 // "If start node is an editable Text node, call deleteData() on it, with4039 // start offset as the first argument and (length of start node − start4040 // offset) as the second argument."4041 if (isEditable(startNode)4042 && startNode.nodeType == Node.TEXT_NODE) {4043 startNode.deleteData(startOffset, getNodeLength(startNode) - startOffset);4044 }4045 // "Let node list be a list of nodes, initially empty."4046 //4047 // "For each node contained in the active range, append node to node list4048 // if the last member of node list (if any) is not an ancestor of node;4049 // node is editable; and node is not a thead, tbody, tfoot, tr, th, or td."4050 var nodeList = getContainedNodes(getActiveRange(),4051 function(node) {4052 return isEditable(node)4053 && !isHtmlElement(node, ["thead", "tbody", "tfoot", "tr", "th", "td"]);4054 }4055 );4056 // "For each node in node list:"4057 for (var i = 0; i < nodeList.length; i++) {4058 var node = nodeList[i];4059 // "Let parent be the parent of node."4060 var parent_ = node.parentNode;4061 // "Remove node from parent."4062 parent_.removeChild(node);4063 // "If the block node of parent has no visible children, and parent is4064 // editable or an editing host, call createElement("br") on the context4065 // object and append the result as the last child of parent."4066 if (![].some.call(getBlockNodeOf(parent_).childNodes, isVisible)4067 && (isEditable(parent_) || isEditingHost(parent_))) {4068 parent_.appendChild(document.createElement("br"));4069 }4070 // "If strip wrappers is true or parent is not an ancestor container of4071 // start node, while parent is an editable inline node with length 0,4072 // let grandparent be the parent of parent, then remove parent from4073 // grandparent, then set parent to grandparent."4074 if (stripWrappers4075 || (!isAncestor(parent_, startNode) && parent_ != startNode)) {4076 while (isEditable(parent_)4077 && isInlineNode(parent_)4078 && getNodeLength(parent_) == 0) {4079 var grandparent = parent_.parentNode;4080 grandparent.removeChild(parent_);4081 parent_ = grandparent;4082 }4083 }4084 }4085 // "If end node is an editable Text node, call deleteData(0, end offset) on4086 // it."4087 if (isEditable(endNode)4088 && endNode.nodeType == Node.TEXT_NODE) {4089 endNode.deleteData(0, endOffset);4090 }4091 // "Canonicalize whitespace at the active range's start, with fix collapsed4092 // space false."4093 canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);4094 // "Canonicalize whitespace at the active range's end, with fix collapsed4095 // space false."4096 canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);4097 // "If block merging is false, or start block or end block is null, or4098 // start block is not in the same editing host as end block, or start block4099 // and end block are the same:"4100 if (!blockMerging4101 || !startBlock4102 || !endBlock4103 || !inSameEditingHost(startBlock, endBlock)4104 || startBlock == endBlock) {4105 // "If direction is "forward", call collapseToStart() on the context4106 // object's Selection."4107 if (direction == "forward") {4108 if (getSelection().rangeCount) {4109 getSelection().collapseToStart();4110 }4111 getActiveRange().collapse(true);4112 // "Otherwise, call collapseToEnd() on the context object's Selection."4113 } else {4114 if (getSelection().rangeCount) {4115 getSelection().collapseToEnd();4116 }4117 getActiveRange().collapse(false);4118 }4119 // "Restore states and values from overrides."4120 restoreStatesAndValues(overrides);4121 // "Abort these steps."4122 return;4123 }4124 // "If start block has one child, which is a collapsed block prop, remove4125 // its child from it."4126 if (startBlock.children.length == 14127 && isCollapsedBlockProp(startBlock.firstChild)) {4128 startBlock.removeChild(startBlock.firstChild);4129 }4130 // "If start block is an ancestor of end block:"4131 if (isAncestor(startBlock, endBlock)) {4132 // "Let reference node be end block."4133 var referenceNode = endBlock;4134 // "While reference node is not a child of start block, set reference4135 // node to its parent."4136 while (referenceNode.parentNode != startBlock) {4137 referenceNode = referenceNode.parentNode;4138 }4139 // "Call collapse() on the context object's Selection, with first4140 // argument start block and second argument the index of reference4141 // node."4142 getSelection().collapse(startBlock, getNodeIndex(referenceNode));4143 getActiveRange().setStart(startBlock, getNodeIndex(referenceNode));4144 getActiveRange().collapse(true);4145 // "If end block has no children:"4146 if (!endBlock.hasChildNodes()) {4147 // "While end block is editable and is the only child of its parent4148 // and is not a child of start block, let parent equal end block,4149 // then remove end block from parent, then set end block to4150 // parent."4151 while (isEditable(endBlock)4152 && endBlock.parentNode.childNodes.length == 14153 && endBlock.parentNode != startBlock) {4154 var parent_ = endBlock;4155 parent_.removeChild(endBlock);4156 endBlock = parent_;4157 }4158 // "If end block is editable and is not an inline node, and its4159 // previousSibling and nextSibling are both inline nodes, call4160 // createElement("br") on the context object and insert it into end4161 // block's parent immediately after end block."4162 if (isEditable(endBlock)4163 && !isInlineNode(endBlock)4164 && isInlineNode(endBlock.previousSibling)4165 && isInlineNode(endBlock.nextSibling)) {4166 endBlock.parentNode.insertBefore(document.createElement("br"), endBlock.nextSibling);4167 }4168 // "If end block is editable, remove it from its parent."4169 if (isEditable(endBlock)) {4170 endBlock.parentNode.removeChild(endBlock);4171 }4172 // "Restore states and values from overrides."4173 restoreStatesAndValues(overrides);4174 // "Abort these steps."4175 return;4176 }4177 // "If end block's firstChild is not an inline node, restore states and4178 // values from overrides, then abort these steps."4179 if (!isInlineNode(endBlock.firstChild)) {4180 restoreStatesAndValues(overrides);4181 return;4182 }4183 // "Let children be a list of nodes, initially empty."4184 var children = [];4185 // "Append the first child of end block to children."4186 children.push(endBlock.firstChild);4187 // "While children's last member is not a br, and children's last4188 // member's nextSibling is an inline node, append children's last4189 // member's nextSibling to children."4190 while (!isHtmlElement(children[children.length - 1], "br")4191 && isInlineNode(children[children.length - 1].nextSibling)) {4192 children.push(children[children.length - 1].nextSibling);4193 }4194 // "Record the values of children, and let values be the result."4195 var values = recordValues(children);4196 // "While children's first member's parent is not start block, split4197 // the parent of children."4198 while (children[0].parentNode != startBlock) {4199 splitParent(children);4200 }4201 // "If children's first member's previousSibling is an editable br,4202 // remove that br from its parent."4203 if (isEditable(children[0].previousSibling)4204 && isHtmlElement(children[0].previousSibling, "br")) {4205 children[0].parentNode.removeChild(children[0].previousSibling);4206 }4207 // "Otherwise, if start block is a descendant of end block:"4208 } else if (isDescendant(startBlock, endBlock)) {4209 // "Call collapse() on the context object's Selection, with first4210 // argument start block and second argument start block's length."4211 getSelection().collapse(startBlock, getNodeLength(startBlock));4212 getActiveRange().setStart(startBlock, getNodeLength(startBlock));4213 getActiveRange().collapse(true);4214 // "Let reference node be start block."4215 var referenceNode = startBlock;4216 // "While reference node is not a child of end block, set reference4217 // node to its parent."4218 while (referenceNode.parentNode != endBlock) {4219 referenceNode = referenceNode.parentNode;4220 }4221 // "If reference node's nextSibling is an inline node and start block's4222 // lastChild is a br, remove start block's lastChild from it."4223 if (isInlineNode(referenceNode.nextSibling)4224 && isHtmlElement(startBlock.lastChild, "br")) {4225 startBlock.removeChild(startBlock.lastChild);4226 }4227 // "Let nodes to move be a list of nodes, initially empty."4228 var nodesToMove = [];4229 // "If reference node's nextSibling is neither null nor a block node,4230 // append it to nodes to move."4231 if (referenceNode.nextSibling4232 && !isBlockNode(referenceNode.nextSibling)) {4233 nodesToMove.push(referenceNode.nextSibling);4234 }4235 // "While nodes to move is nonempty and its last member isn't a br and4236 // its last member's nextSibling is neither null nor a block node,4237 // append its last member's nextSibling to nodes to move."4238 if (nodesToMove.length4239 && !isHtmlElement(nodesToMove[nodesToMove.length - 1], "br")4240 && nodesToMove[nodesToMove.length - 1].nextSibling4241 && !isBlockNode(nodesToMove[nodesToMove.length - 1].nextSibling)) {4242 nodesToMove.push(nodesToMove[nodesToMove.length - 1].nextSibling);4243 }4244 // "Record the values of nodes to move, and let values be the result."4245 var values = recordValues(nodesToMove);4246 // "For each node in nodes to move, append node as the last child of4247 // start block, preserving ranges."4248 nodesToMove.forEach(function(node) {4249 movePreservingRanges(node, startBlock, -1);4250 });4251 // "Otherwise:"4252 } else {4253 // "Call collapse() on the context object's Selection, with first4254 // argument start block and second argument start block's length."4255 getSelection().collapse(startBlock, getNodeLength(startBlock));4256 getActiveRange().setStart(startBlock, getNodeLength(startBlock));4257 getActiveRange().collapse(true);4258 // "If end block's firstChild is an inline node and start block's4259 // lastChild is a br, remove start block's lastChild from it."4260 if (isInlineNode(endBlock.firstChild)4261 && isHtmlElement(startBlock.lastChild, "br")) {4262 startBlock.removeChild(startBlock.lastChild);4263 }4264 // "Record the values of end block's children, and let values be the4265 // result."4266 var values = recordValues([].slice.call(endBlock.childNodes));4267 // "While end block has children, append the first child of end block4268 // to start block, preserving ranges."4269 while (endBlock.hasChildNodes()) {4270 movePreservingRanges(endBlock.firstChild, startBlock, -1);4271 }4272 // "While end block has no children, let parent be the parent of end4273 // block, then remove end block from parent, then set end block to4274 // parent."4275 while (!endBlock.hasChildNodes()) {4276 var parent_ = endBlock.parentNode;4277 parent_.removeChild(endBlock);4278 endBlock = parent_;4279 }4280 }4281 // "Let ancestor be start block."4282 var ancestor = startBlock;4283 // "While ancestor has an inclusive ancestor ol in the same editing host4284 // whose nextSibling is also an ol in the same editing host, or an4285 // inclusive ancestor ul in the same editing host whose nextSibling is also4286 // a ul in the same editing host:"4287 while (getInclusiveAncestors(ancestor).some(function(node) {4288 return inSameEditingHost(ancestor, node)4289 && (4290 (isHtmlElement(node, "ol") && isHtmlElement(node.nextSibling, "ol"))4291 || (isHtmlElement(node, "ul") && isHtmlElement(node.nextSibling, "ul"))4292 ) && inSameEditingHost(ancestor, node.nextSibling);4293 })) {4294 // "While ancestor and its nextSibling are not both ols in the same4295 // editing host, and are also not both uls in the same editing host,4296 // set ancestor to its parent."4297 while (!(4298 isHtmlElement(ancestor, "ol")4299 && isHtmlElement(ancestor.nextSibling, "ol")4300 && inSameEditingHost(ancestor, ancestor.nextSibling)4301 ) && !(4302 isHtmlElement(ancestor, "ul")4303 && isHtmlElement(ancestor.nextSibling, "ul")4304 && inSameEditingHost(ancestor, ancestor.nextSibling)4305 )) {4306 ancestor = ancestor.parentNode;4307 }4308 // "While ancestor's nextSibling has children, append ancestor's4309 // nextSibling's firstChild as the last child of ancestor, preserving4310 // ranges."4311 while (ancestor.nextSibling.hasChildNodes()) {4312 movePreservingRanges(ancestor.nextSibling.firstChild, ancestor, -1);4313 }4314 // "Remove ancestor's nextSibling from its parent."4315 ancestor.parentNode.removeChild(ancestor.nextSibling);4316 }4317 // "Restore the values from values."4318 restoreValues(values);4319 // "If start block has no children, call createElement("br") on the context4320 // object and append the result as the last child of start block."4321 if (!startBlock.hasChildNodes()) {4322 startBlock.appendChild(document.createElement("br"));4323 }4324 // "Remove extraneous line breaks at the end of start block."4325 removeExtraneousLineBreaksAtTheEndOf(startBlock);4326 // "Restore states and values from overrides."4327 restoreStatesAndValues(overrides);4328}4329//@}4330///// Splitting a node list's parent /////4331//@{4332function splitParent(nodeList) {4333 // "Let original parent be the parent of the first member of node list."4334 var originalParent = nodeList[0].parentNode;4335 // "If original parent is not editable or its parent is null, do nothing4336 // and abort these steps."4337 if (!isEditable(originalParent)4338 || !originalParent.parentNode) {4339 return;4340 }4341 // "If the first child of original parent is in node list, remove4342 // extraneous line breaks before original parent."4343 if (nodeList.indexOf(originalParent.firstChild) != -1) {4344 removeExtraneousLineBreaksBefore(originalParent);4345 }4346 // "If the first child of original parent is in node list, and original4347 // parent follows a line break, set follows line break to true. Otherwise,4348 // set follows line break to false."4349 var followsLineBreak_ = nodeList.indexOf(originalParent.firstChild) != -14350 && followsLineBreak(originalParent);4351 // "If the last child of original parent is in node list, and original4352 // parent precedes a line break, set precedes line break to true.4353 // Otherwise, set precedes line break to false."4354 var precedesLineBreak_ = nodeList.indexOf(originalParent.lastChild) != -14355 && precedesLineBreak(originalParent);4356 // "If the first child of original parent is not in node list, but its last4357 // child is:"4358 if (nodeList.indexOf(originalParent.firstChild) == -14359 && nodeList.indexOf(originalParent.lastChild) != -1) {4360 // "For each node in node list, in reverse order, insert node into the4361 // parent of original parent immediately after original parent,4362 // preserving ranges."4363 for (var i = nodeList.length - 1; i >= 0; i--) {4364 movePreservingRanges(nodeList[i], originalParent.parentNode, 1 + getNodeIndex(originalParent));4365 }4366 // "If precedes line break is true, and the last member of node list4367 // does not precede a line break, call createElement("br") on the4368 // context object and insert the result immediately after the last4369 // member of node list."4370 if (precedesLineBreak_4371 && !precedesLineBreak(nodeList[nodeList.length - 1])) {4372 nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4373 }4374 // "Remove extraneous line breaks at the end of original parent."4375 removeExtraneousLineBreaksAtTheEndOf(originalParent);4376 // "Abort these steps."4377 return;4378 }4379 // "If the first child of original parent is not in node list:"4380 if (nodeList.indexOf(originalParent.firstChild) == -1) {4381 // "Let cloned parent be the result of calling cloneNode(false) on4382 // original parent."4383 var clonedParent = originalParent.cloneNode(false);4384 // "If original parent has an id attribute, unset it."4385 originalParent.removeAttribute("id");4386 // "Insert cloned parent into the parent of original parent immediately4387 // before original parent."4388 originalParent.parentNode.insertBefore(clonedParent, originalParent);4389 // "While the previousSibling of the first member of node list is not4390 // null, append the first child of original parent as the last child of4391 // cloned parent, preserving ranges."4392 while (nodeList[0].previousSibling) {4393 movePreservingRanges(originalParent.firstChild, clonedParent, clonedParent.childNodes.length);4394 }4395 }4396 // "For each node in node list, insert node into the parent of original4397 // parent immediately before original parent, preserving ranges."4398 for (var i = 0; i < nodeList.length; i++) {4399 movePreservingRanges(nodeList[i], originalParent.parentNode, getNodeIndex(originalParent));4400 }4401 // "If follows line break is true, and the first member of node list does4402 // not follow a line break, call createElement("br") on the context object4403 // and insert the result immediately before the first member of node list."4404 if (followsLineBreak_4405 && !followsLineBreak(nodeList[0])) {4406 nodeList[0].parentNode.insertBefore(document.createElement("br"), nodeList[0]);4407 }4408 // "If the last member of node list is an inline node other than a br, and4409 // the first child of original parent is a br, and original parent is not4410 // an inline node, remove the first child of original parent from original4411 // parent."4412 if (isInlineNode(nodeList[nodeList.length - 1])4413 && !isHtmlElement(nodeList[nodeList.length - 1], "br")4414 && isHtmlElement(originalParent.firstChild, "br")4415 && !isInlineNode(originalParent)) {4416 originalParent.removeChild(originalParent.firstChild);4417 }4418 // "If original parent has no children:"4419 if (!originalParent.hasChildNodes()) {4420 // "Remove original parent from its parent."4421 originalParent.parentNode.removeChild(originalParent);4422 // "If precedes line break is true, and the last member of node list4423 // does not precede a line break, call createElement("br") on the4424 // context object and insert the result immediately after the last4425 // member of node list."4426 if (precedesLineBreak_4427 && !precedesLineBreak(nodeList[nodeList.length - 1])) {4428 nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4429 }4430 // "Otherwise, remove extraneous line breaks before original parent."4431 } else {4432 removeExtraneousLineBreaksBefore(originalParent);4433 }4434 // "If node list's last member's nextSibling is null, but its parent is not4435 // null, remove extraneous line breaks at the end of node list's last4436 // member's parent."4437 if (!nodeList[nodeList.length - 1].nextSibling4438 && nodeList[nodeList.length - 1].parentNode) {4439 removeExtraneousLineBreaksAtTheEndOf(nodeList[nodeList.length - 1].parentNode);4440 }4441}4442// "To remove a node node while preserving its descendants, split the parent of4443// node's children if it has any. If it has no children, instead remove it from4444// its parent."4445function removePreservingDescendants(node) {4446 if (node.hasChildNodes()) {4447 splitParent([].slice.call(node.childNodes));4448 } else {4449 node.parentNode.removeChild(node);4450 }4451}4452//@}4453///// Canonical space sequences /////4454//@{4455function canonicalSpaceSequence(n, nonBreakingStart, nonBreakingEnd) {4456 // "If n is zero, return the empty string."4457 if (n == 0) {4458 return "";4459 }4460 // "If n is one and both non-breaking start and non-breaking end are false,4461 // return a single space (U+0020)."4462 if (n == 1 && !nonBreakingStart && !nonBreakingEnd) {4463 return " ";4464 }4465 // "If n is one, return a single non-breaking space (U+00A0)."4466 if (n == 1) {4467 return "\xa0";4468 }4469 // "Let buffer be the empty string."4470 var buffer = "";4471 // "If non-breaking start is true, let repeated pair be U+00A0 U+0020.4472 // Otherwise, let it be U+0020 U+00A0."4473 var repeatedPair;4474 if (nonBreakingStart) {4475 repeatedPair = "\xa0 ";4476 } else {4477 repeatedPair = " \xa0";4478 }4479 // "While n is greater than three, append repeated pair to buffer and4480 // subtract two from n."4481 while (n > 3) {4482 buffer += repeatedPair;4483 n -= 2;4484 }4485 // "If n is three, append a three-element string to buffer depending on4486 // non-breaking start and non-breaking end:"4487 if (n == 3) {4488 buffer +=4489 !nonBreakingStart && !nonBreakingEnd ? " \xa0 "4490 : nonBreakingStart && !nonBreakingEnd ? "\xa0\xa0 "4491 : !nonBreakingStart && nonBreakingEnd ? " \xa0\xa0"4492 : nonBreakingStart && nonBreakingEnd ? "\xa0 \xa0"4493 : "impossible";4494 // "Otherwise, append a two-element string to buffer depending on4495 // non-breaking start and non-breaking end:"4496 } else {4497 buffer +=4498 !nonBreakingStart && !nonBreakingEnd ? "\xa0 "4499 : nonBreakingStart && !nonBreakingEnd ? "\xa0 "4500 : !nonBreakingStart && nonBreakingEnd ? " \xa0"4501 : nonBreakingStart && nonBreakingEnd ? "\xa0\xa0"4502 : "impossible";4503 }4504 // "Return buffer."4505 return buffer;4506}4507function canonicalizeWhitespace(node, offset, fixCollapsedSpace) {4508 if (fixCollapsedSpace === undefined) {4509 // "an optional boolean argument fix collapsed space that defaults to4510 // true"4511 fixCollapsedSpace = true;4512 }4513 // "If node is neither editable nor an editing host, abort these steps."4514 if (!isEditable(node) && !isEditingHost(node)) {4515 return;4516 }4517 // "Let start node equal node and let start offset equal offset."4518 var startNode = node;4519 var startOffset = offset;4520 // "Repeat the following steps:"4521 while (true) {4522 // "If start node has a child in the same editing host with index start4523 // offset minus one, set start node to that child, then set start4524 // offset to start node's length."4525 if (0 <= startOffset - 14526 && inSameEditingHost(startNode, startNode.childNodes[startOffset - 1])) {4527 startNode = startNode.childNodes[startOffset - 1];4528 startOffset = getNodeLength(startNode);4529 // "Otherwise, if start offset is zero and start node does not follow a4530 // line break and start node's parent is in the same editing host, set4531 // start offset to start node's index, then set start node to its4532 // parent."4533 } else if (startOffset == 04534 && !followsLineBreak(startNode)4535 && inSameEditingHost(startNode, startNode.parentNode)) {4536 startOffset = getNodeIndex(startNode);4537 startNode = startNode.parentNode;4538 // "Otherwise, if start node is a Text node and its parent's resolved4539 // value for "white-space" is neither "pre" nor "pre-wrap" and start4540 // offset is not zero and the (start offset − 1)st element of start4541 // node's data is a space (0x0020) or non-breaking space (0x00A0),4542 // subtract one from start offset."4543 } else if (startNode.nodeType == Node.TEXT_NODE4544 && ["pre", "pre-wrap"].indexOf(getComputedStyle(startNode.parentNode).whiteSpace) == -14545 && startOffset != 04546 && /[ \xa0]/.test(startNode.data[startOffset - 1])) {4547 startOffset--;4548 // "Otherwise, break from this loop."4549 } else {4550 break;4551 }4552 }4553 // "Let end node equal start node and end offset equal start offset."4554 var endNode = startNode;4555 var endOffset = startOffset;4556 // "Let length equal zero."4557 var length = 0;4558 // "Let collapse spaces be true if start offset is zero and start node4559 // follows a line break, otherwise false."4560 var collapseSpaces = startOffset == 0 && followsLineBreak(startNode);4561 // "Repeat the following steps:"4562 while (true) {4563 // "If end node has a child in the same editing host with index end4564 // offset, set end node to that child, then set end offset to zero."4565 if (endOffset < endNode.childNodes.length4566 && inSameEditingHost(endNode, endNode.childNodes[endOffset])) {4567 endNode = endNode.childNodes[endOffset];4568 endOffset = 0;4569 // "Otherwise, if end offset is end node's length and end node does not4570 // precede a line break and end node's parent is in the same editing4571 // host, set end offset to one plus end node's index, then set end node4572 // to its parent."4573 } else if (endOffset == getNodeLength(endNode)4574 && !precedesLineBreak(endNode)4575 && inSameEditingHost(endNode, endNode.parentNode)) {4576 endOffset = 1 + getNodeIndex(endNode);4577 endNode = endNode.parentNode;4578 // "Otherwise, if end node is a Text node and its parent's resolved4579 // value for "white-space" is neither "pre" nor "pre-wrap" and end4580 // offset is not end node's length and the end offsetth element of4581 // end node's data is a space (0x0020) or non-breaking space (0x00A0):"4582 } else if (endNode.nodeType == Node.TEXT_NODE4583 && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14584 && endOffset != getNodeLength(endNode)4585 && /[ \xa0]/.test(endNode.data[endOffset])) {4586 // "If fix collapsed space is true, and collapse spaces is true,4587 // and the end offsetth code unit of end node's data is a space4588 // (0x0020): call deleteData(end offset, 1) on end node, then4589 // continue this loop from the beginning."4590 if (fixCollapsedSpace4591 && collapseSpaces4592 && " " == endNode.data[endOffset]) {4593 endNode.deleteData(endOffset, 1);4594 continue;4595 }4596 // "Set collapse spaces to true if the end offsetth element of end4597 // node's data is a space (0x0020), false otherwise."4598 collapseSpaces = " " == endNode.data[endOffset];4599 // "Add one to end offset."4600 endOffset++;4601 // "Add one to length."4602 length++;4603 // "Otherwise, break from this loop."4604 } else {4605 break;4606 }4607 }4608 // "If fix collapsed space is true, then while (start node, start offset)4609 // is before (end node, end offset):"4610 if (fixCollapsedSpace) {4611 while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4612 // "If end node has a child in the same editing host with index end4613 // offset − 1, set end node to that child, then set end offset to end4614 // node's length."4615 if (0 <= endOffset - 14616 && endOffset - 1 < endNode.childNodes.length4617 && inSameEditingHost(endNode, endNode.childNodes[endOffset - 1])) {4618 endNode = endNode.childNodes[endOffset - 1];4619 endOffset = getNodeLength(endNode);4620 // "Otherwise, if end offset is zero and end node's parent is in the4621 // same editing host, set end offset to end node's index, then set end4622 // node to its parent."4623 } else if (endOffset == 04624 && inSameEditingHost(endNode, endNode.parentNode)) {4625 endOffset = getNodeIndex(endNode);4626 endNode = endNode.parentNode;4627 // "Otherwise, if end node is a Text node and its parent's resolved4628 // value for "white-space" is neither "pre" nor "pre-wrap" and end4629 // offset is end node's length and the last code unit of end node's4630 // data is a space (0x0020) and end node precedes a line break:"4631 } else if (endNode.nodeType == Node.TEXT_NODE4632 && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14633 && endOffset == getNodeLength(endNode)4634 && endNode.data[endNode.data.length - 1] == " "4635 && precedesLineBreak(endNode)) {4636 // "Subtract one from end offset."4637 endOffset--;4638 // "Subtract one from length."4639 length--;4640 // "Call deleteData(end offset, 1) on end node."4641 endNode.deleteData(endOffset, 1);4642 // "Otherwise, break from this loop."4643 } else {4644 break;4645 }4646 }4647 }4648 // "Let replacement whitespace be the canonical space sequence of length4649 // length. non-breaking start is true if start offset is zero and start4650 // node follows a line break, and false otherwise. non-breaking end is true4651 // if end offset is end node's length and end node precedes a line break,4652 // and false otherwise."4653 var replacementWhitespace = canonicalSpaceSequence(length,4654 startOffset == 0 && followsLineBreak(startNode),4655 endOffset == getNodeLength(endNode) && precedesLineBreak(endNode));4656 // "While (start node, start offset) is before (end node, end offset):"4657 while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4658 // "If start node has a child with index start offset, set start node4659 // to that child, then set start offset to zero."4660 if (startOffset < startNode.childNodes.length) {4661 startNode = startNode.childNodes[startOffset];4662 startOffset = 0;4663 // "Otherwise, if start node is not a Text node or if start offset is4664 // start node's length, set start offset to one plus start node's4665 // index, then set start node to its parent."4666 } else if (startNode.nodeType != Node.TEXT_NODE4667 || startOffset == getNodeLength(startNode)) {4668 startOffset = 1 + getNodeIndex(startNode);4669 startNode = startNode.parentNode;4670 // "Otherwise:"4671 } else {4672 // "Remove the first element from replacement whitespace, and let4673 // element be that element."4674 var element = replacementWhitespace[0];4675 replacementWhitespace = replacementWhitespace.slice(1);4676 // "If element is not the same as the start offsetth element of4677 // start node's data:"4678 if (element != startNode.data[startOffset]) {4679 // "Call insertData(start offset, element) on start node."4680 startNode.insertData(startOffset, element);4681 // "Call deleteData(start offset + 1, 1) on start node."4682 startNode.deleteData(startOffset + 1, 1);4683 }4684 // "Add one to start offset."4685 startOffset++;4686 }4687 }4688}4689//@}4690///// Indenting and outdenting /////4691//@{4692function indentNodes(nodeList) {4693 // "If node list is empty, do nothing and abort these steps."4694 if (!nodeList.length) {4695 return;4696 }4697 // "Let first node be the first member of node list."4698 var firstNode = nodeList[0];4699 // "If first node's parent is an ol or ul:"4700 if (isHtmlElement(firstNode.parentNode, ["OL", "UL"])) {4701 // "Let tag be the local name of the parent of first node."4702 var tag = firstNode.parentNode.tagName;4703 // "Wrap node list, with sibling criteria returning true for an HTML4704 // element with local name tag and false otherwise, and new parent4705 // instructions returning the result of calling createElement(tag) on4706 // the ownerDocument of first node."4707 wrap(nodeList,4708 function(node) { return isHtmlElement(node, tag) },4709 function() { return firstNode.ownerDocument.createElement(tag) });4710 // "Abort these steps."4711 return;4712 }4713 // "Wrap node list, with sibling criteria returning true for a simple4714 // indentation element and false otherwise, and new parent instructions4715 // returning the result of calling createElement("blockquote") on the4716 // ownerDocument of first node. Let new parent be the result."4717 var newParent = wrap(nodeList,4718 function(node) { return isSimpleIndentationElement(node) },4719 function() { return firstNode.ownerDocument.createElement("blockquote") });4720 // "Fix disallowed ancestors of new parent."4721 fixDisallowedAncestors(newParent);4722}4723function outdentNode(node) {4724 // "If node is not editable, abort these steps."4725 if (!isEditable(node)) {4726 return;4727 }4728 // "If node is a simple indentation element, remove node, preserving its4729 // descendants. Then abort these steps."4730 if (isSimpleIndentationElement(node)) {4731 removePreservingDescendants(node);4732 return;4733 }4734 // "If node is an indentation element:"4735 if (isIndentationElement(node)) {4736 // "Unset the dir attribute of node, if any."4737 node.removeAttribute("dir");4738 // "Unset the margin, padding, and border CSS properties of node."4739 node.style.margin = "";4740 node.style.padding = "";4741 node.style.border = "";4742 if (node.getAttribute("style") == ""4743 // Crazy WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=685514744 || node.getAttribute("style") == "border-width: initial; border-color: initial; ") {4745 node.removeAttribute("style");4746 }4747 // "Set the tag name of node to "div"."4748 setTagName(node, "div");4749 // "Abort these steps."4750 return;4751 }4752 // "Let current ancestor be node's parent."4753 var currentAncestor = node.parentNode;4754 // "Let ancestor list be a list of nodes, initially empty."4755 var ancestorList = [];4756 // "While current ancestor is an editable Element that is neither a simple4757 // indentation element nor an ol nor a ul, append current ancestor to4758 // ancestor list and then set current ancestor to its parent."4759 while (isEditable(currentAncestor)4760 && currentAncestor.nodeType == Node.ELEMENT_NODE4761 && !isSimpleIndentationElement(currentAncestor)4762 && !isHtmlElement(currentAncestor, ["ol", "ul"])) {4763 ancestorList.push(currentAncestor);4764 currentAncestor = currentAncestor.parentNode;4765 }4766 // "If current ancestor is not an editable simple indentation element:"4767 if (!isEditable(currentAncestor)4768 || !isSimpleIndentationElement(currentAncestor)) {4769 // "Let current ancestor be node's parent."4770 currentAncestor = node.parentNode;4771 // "Let ancestor list be the empty list."4772 ancestorList = [];4773 // "While current ancestor is an editable Element that is neither an4774 // indentation element nor an ol nor a ul, append current ancestor to4775 // ancestor list and then set current ancestor to its parent."4776 while (isEditable(currentAncestor)4777 && currentAncestor.nodeType == Node.ELEMENT_NODE4778 && !isIndentationElement(currentAncestor)4779 && !isHtmlElement(currentAncestor, ["ol", "ul"])) {4780 ancestorList.push(currentAncestor);4781 currentAncestor = currentAncestor.parentNode;4782 }4783 }4784 // "If node is an ol or ul and current ancestor is not an editable4785 // indentation element:"4786 if (isHtmlElement(node, ["OL", "UL"])4787 && (!isEditable(currentAncestor)4788 || !isIndentationElement(currentAncestor))) {4789 // "Unset the reversed, start, and type attributes of node, if any are4790 // set."4791 node.removeAttribute("reversed");4792 node.removeAttribute("start");4793 node.removeAttribute("type");4794 // "Let children be the children of node."4795 var children = [].slice.call(node.childNodes);4796 // "If node has attributes, and its parent is not an ol or ul, set the4797 // tag name of node to "div"."4798 if (node.attributes.length4799 && !isHtmlElement(node.parentNode, ["OL", "UL"])) {4800 setTagName(node, "div");4801 // "Otherwise:"4802 } else {4803 // "Record the values of node's children, and let values be the4804 // result."4805 var values = recordValues([].slice.call(node.childNodes));4806 // "Remove node, preserving its descendants."4807 removePreservingDescendants(node);4808 // "Restore the values from values."4809 restoreValues(values);4810 }4811 // "Fix disallowed ancestors of each member of children."4812 for (var i = 0; i < children.length; i++) {4813 fixDisallowedAncestors(children[i]);4814 }4815 // "Abort these steps."4816 return;4817 }4818 // "If current ancestor is not an editable indentation element, abort these4819 // steps."4820 if (!isEditable(currentAncestor)4821 || !isIndentationElement(currentAncestor)) {4822 return;4823 }4824 // "Append current ancestor to ancestor list."4825 ancestorList.push(currentAncestor);4826 // "Let original ancestor be current ancestor."4827 var originalAncestor = currentAncestor;4828 // "While ancestor list is not empty:"4829 while (ancestorList.length) {4830 // "Let current ancestor be the last member of ancestor list."4831 //4832 // "Remove the last member of ancestor list."4833 currentAncestor = ancestorList.pop();4834 // "Let target be the child of current ancestor that is equal to either4835 // node or the last member of ancestor list."4836 var target = node.parentNode == currentAncestor4837 ? node4838 : ancestorList[ancestorList.length - 1];4839 // "If target is an inline node that is not a br, and its nextSibling4840 // is a br, remove target's nextSibling from its parent."4841 if (isInlineNode(target)4842 && !isHtmlElement(target, "BR")4843 && isHtmlElement(target.nextSibling, "BR")) {4844 target.parentNode.removeChild(target.nextSibling);4845 }4846 // "Let preceding siblings be the preceding siblings of target, and let4847 // following siblings be the following siblings of target."4848 var precedingSiblings = [].slice.call(currentAncestor.childNodes, 0, getNodeIndex(target));4849 var followingSiblings = [].slice.call(currentAncestor.childNodes, 1 + getNodeIndex(target));4850 // "Indent preceding siblings."4851 indentNodes(precedingSiblings);4852 // "Indent following siblings."4853 indentNodes(followingSiblings);4854 }4855 // "Outdent original ancestor."4856 outdentNode(originalAncestor);4857}4858//@}4859///// Toggling lists /////4860//@{4861function toggleLists(tagName) {4862 // "Record current overrides, and let overrides be the result."4863 var overrides = recordCurrentOverrides();4864 // "Let mode be "disable" if the selection's list state is tag name, and4865 // "enable" otherwise."4866 var mode = getSelectionListState() == tagName ? "disable" : "enable";4867 var range = getActiveRange();4868 tagName = tagName.toUpperCase();4869 // "Let other tag name be "ol" if tag name is "ul", and "ul" if tag name is4870 // "ol"."4871 var otherTagName = tagName == "OL" ? "UL" : "OL";4872 // "Let items be a list of all lis that are ancestor containers of the4873 // range's start and/or end node."4874 //4875 // It's annoying to get this in tree order using functional stuff without4876 // doing getDescendants(document), which is slow, so I do it imperatively.4877 var items = [];4878 (function(){4879 for (4880 var ancestorContainer = range.endContainer;4881 ancestorContainer != range.commonAncestorContainer;4882 ancestorContainer = ancestorContainer.parentNode4883 ) {4884 if (isHtmlElement(ancestorContainer, "li")) {4885 items.unshift(ancestorContainer);4886 }4887 }4888 for (4889 var ancestorContainer = range.startContainer;4890 ancestorContainer;4891 ancestorContainer = ancestorContainer.parentNode4892 ) {4893 if (isHtmlElement(ancestorContainer, "li")) {4894 items.unshift(ancestorContainer);4895 }4896 }4897 })();4898 // "For each item in items, normalize sublists of item."4899 items.forEach(normalizeSublists);4900 // "Block-extend the range, and let new range be the result."4901 var newRange = blockExtend(range);4902 // "If mode is "enable", then let lists to convert consist of every4903 // editable HTML element with local name other tag name that is contained4904 // in new range, and for every list in lists to convert:"4905 if (mode == "enable") {4906 getAllContainedNodes(newRange, function(node) {4907 return isEditable(node)4908 && isHtmlElement(node, otherTagName);4909 }).forEach(function(list) {4910 // "If list's previousSibling or nextSibling is an editable HTML4911 // element with local name tag name:"4912 if ((isEditable(list.previousSibling) && isHtmlElement(list.previousSibling, tagName))4913 || (isEditable(list.nextSibling) && isHtmlElement(list.nextSibling, tagName))) {4914 // "Let children be list's children."4915 var children = [].slice.call(list.childNodes);4916 // "Record the values of children, and let values be the4917 // result."4918 var values = recordValues(children);4919 // "Split the parent of children."4920 splitParent(children);4921 // "Wrap children, with sibling criteria returning true for an4922 // HTML element with local name tag name and false otherwise."4923 wrap(children, function(node) { return isHtmlElement(node, tagName) });4924 // "Restore the values from values."4925 restoreValues(values);4926 // "Otherwise, set the tag name of list to tag name."4927 } else {4928 setTagName(list, tagName);4929 }4930 });4931 }4932 // "Let node list be a list of nodes, initially empty."4933 //4934 // "For each node node contained in new range, if node is editable; the4935 // last member of node list (if any) is not an ancestor of node; node4936 // is not an indentation element; and either node is an ol or ul, or its4937 // parent is an ol or ul, or it is an allowed child of "li"; then append4938 // node to node list."4939 var nodeList = getContainedNodes(newRange, function(node) {4940 return isEditable(node)4941 && !isIndentationElement(node)4942 && (isHtmlElement(node, ["OL", "UL"])4943 || isHtmlElement(node.parentNode, ["OL", "UL"])4944 || isAllowedChild(node, "li"));4945 });4946 // "If mode is "enable", remove from node list any ol or ul whose parent is4947 // not also an ol or ul."4948 if (mode == "enable") {4949 nodeList = nodeList.filter(function(node) {4950 return !isHtmlElement(node, ["ol", "ul"])4951 || isHtmlElement(node.parentNode, ["ol", "ul"]);4952 });4953 }4954 // "If mode is "disable", then while node list is not empty:"4955 if (mode == "disable") {4956 while (nodeList.length) {4957 // "Let sublist be an empty list of nodes."4958 var sublist = [];4959 // "Remove the first member from node list and append it to4960 // sublist."4961 sublist.push(nodeList.shift());4962 // "If the first member of sublist is an HTML element with local4963 // name tag name, outdent it and continue this loop from the4964 // beginning."4965 if (isHtmlElement(sublist[0], tagName)) {4966 outdentNode(sublist[0]);4967 continue;4968 }4969 // "While node list is not empty, and the first member of node list4970 // is the nextSibling of the last member of sublist and is not an4971 // HTML element with local name tag name, remove the first member4972 // from node list and append it to sublist."4973 while (nodeList.length4974 && nodeList[0] == sublist[sublist.length - 1].nextSibling4975 && !isHtmlElement(nodeList[0], tagName)) {4976 sublist.push(nodeList.shift());4977 }4978 // "Record the values of sublist, and let values be the result."4979 var values = recordValues(sublist);4980 // "Split the parent of sublist."4981 splitParent(sublist);4982 // "Fix disallowed ancestors of each member of sublist."4983 for (var i = 0; i < sublist.length; i++) {4984 fixDisallowedAncestors(sublist[i]);4985 }4986 // "Restore the values from values."4987 restoreValues(values);4988 }4989 // "Otherwise, while node list is not empty:"4990 } else {4991 while (nodeList.length) {4992 // "Let sublist be an empty list of nodes."4993 var sublist = [];4994 // "While either sublist is empty, or node list is not empty and4995 // its first member is the nextSibling of sublist's last member:"4996 while (!sublist.length4997 || (nodeList.length4998 && nodeList[0] == sublist[sublist.length - 1].nextSibling)) {4999 // "If node list's first member is a p or div, set the tag name5000 // of node list's first member to "li", and append the result5001 // to sublist. Remove the first member from node list."5002 if (isHtmlElement(nodeList[0], ["p", "div"])) {5003 sublist.push(setTagName(nodeList[0], "li"));5004 nodeList.shift();5005 // "Otherwise, if the first member of node list is an li or ol5006 // or ul, remove it from node list and append it to sublist."5007 } else if (isHtmlElement(nodeList[0], ["li", "ol", "ul"])) {5008 sublist.push(nodeList.shift());5009 // "Otherwise:"5010 } else {5011 // "Let nodes to wrap be a list of nodes, initially empty."5012 var nodesToWrap = [];5013 // "While nodes to wrap is empty, or node list is not empty5014 // and its first member is the nextSibling of nodes to5015 // wrap's last member and the first member of node list is5016 // an inline node and the last member of nodes to wrap is5017 // an inline node other than a br, remove the first member5018 // from node list and append it to nodes to wrap."5019 while (!nodesToWrap.length5020 || (nodeList.length5021 && nodeList[0] == nodesToWrap[nodesToWrap.length - 1].nextSibling5022 && isInlineNode(nodeList[0])5023 && isInlineNode(nodesToWrap[nodesToWrap.length - 1])5024 && !isHtmlElement(nodesToWrap[nodesToWrap.length - 1], "br"))) {5025 nodesToWrap.push(nodeList.shift());5026 }5027 // "Wrap nodes to wrap, with new parent instructions5028 // returning the result of calling createElement("li") on5029 // the context object. Append the result to sublist."5030 sublist.push(wrap(nodesToWrap,5031 undefined,5032 function() { return document.createElement("li") }));5033 }5034 }5035 // "If sublist's first member's parent is an HTML element with5036 // local name tag name, or if every member of sublist is an ol or5037 // ul, continue this loop from the beginning."5038 if (isHtmlElement(sublist[0].parentNode, tagName)5039 || sublist.every(function(node) { return isHtmlElement(node, ["ol", "ul"]) })) {5040 continue;5041 }5042 // "If sublist's first member's parent is an HTML element with5043 // local name other tag name:"5044 if (isHtmlElement(sublist[0].parentNode, otherTagName)) {5045 // "Record the values of sublist, and let values be the5046 // result."5047 var values = recordValues(sublist);5048 // "Split the parent of sublist."5049 splitParent(sublist);5050 // "Wrap sublist, with sibling criteria returning true for an5051 // HTML element with local name tag name and false otherwise,5052 // and new parent instructions returning the result of calling5053 // createElement(tag name) on the context object."5054 wrap(sublist,5055 function(node) { return isHtmlElement(node, tagName) },5056 function() { return document.createElement(tagName) });5057 // "Restore the values from values."5058 restoreValues(values);5059 // "Continue this loop from the beginning."5060 continue;5061 }5062 // "Wrap sublist, with sibling criteria returning true for an HTML5063 // element with local name tag name and false otherwise, and new5064 // parent instructions being the following:"5065 // . . .5066 // "Fix disallowed ancestors of the previous step's result."5067 fixDisallowedAncestors(wrap(sublist,5068 function(node) { return isHtmlElement(node, tagName) },5069 function() {5070 // "If sublist's first member's parent is not an editable5071 // simple indentation element, or sublist's first member's5072 // parent's previousSibling is not an editable HTML element5073 // with local name tag name, call createElement(tag name)5074 // on the context object and return the result."5075 if (!isEditable(sublist[0].parentNode)5076 || !isSimpleIndentationElement(sublist[0].parentNode)5077 || !isEditable(sublist[0].parentNode.previousSibling)5078 || !isHtmlElement(sublist[0].parentNode.previousSibling, tagName)) {5079 return document.createElement(tagName);5080 }5081 // "Let list be sublist's first member's parent's5082 // previousSibling."5083 var list = sublist[0].parentNode.previousSibling;5084 // "Normalize sublists of list's lastChild."5085 normalizeSublists(list.lastChild);5086 // "If list's lastChild is not an editable HTML element5087 // with local name tag name, call createElement(tag name)5088 // on the context object, and append the result as the last5089 // child of list."5090 if (!isEditable(list.lastChild)5091 || !isHtmlElement(list.lastChild, tagName)) {5092 list.appendChild(document.createElement(tagName));5093 }5094 // "Return the last child of list."5095 return list.lastChild;5096 }5097 ));5098 }5099 }5100 // "Restore states and values from overrides."5101 restoreStatesAndValues(overrides);5102}5103//@}5104///// Justifying the selection /////5105//@{5106function justifySelection(alignment) {5107 // "Record current overrides, and let overrides be the result."5108 var overrides = recordCurrentOverrides();5109 // "Block-extend the active range, and let new range be the result."5110 var newRange = blockExtend(globalRange);5111 // "Let element list be a list of all editable Elements contained in new5112 // range that either has an attribute in the HTML namespace whose local5113 // name is "align", or has a style attribute that sets "text-align", or is5114 // a center."5115 var elementList = getAllContainedNodes(newRange, function(node) {5116 return node.nodeType == Node.ELEMENT_NODE5117 && isEditable(node)5118 // Ignoring namespaces here5119 && (5120 node.hasAttribute("align")5121 || node.style.textAlign != ""5122 || isHtmlElement(node, "center")5123 );5124 });5125 // "For each element in element list:"5126 for (var i = 0; i < elementList.length; i++) {5127 var element = elementList[i];5128 // "If element has an attribute in the HTML namespace whose local name5129 // is "align", remove that attribute."5130 element.removeAttribute("align");5131 // "Unset the CSS property "text-align" on element, if it's set by a5132 // style attribute."5133 element.style.textAlign = "";5134 if (element.getAttribute("style") == "") {5135 element.removeAttribute("style");5136 }5137 // "If element is a div or span or center with no attributes, remove5138 // it, preserving its descendants."5139 if (isHtmlElement(element, ["div", "span", "center"])5140 && !element.attributes.length) {5141 removePreservingDescendants(element);5142 }5143 // "If element is a center with one or more attributes, set the tag5144 // name of element to "div"."5145 if (isHtmlElement(element, "center")5146 && element.attributes.length) {5147 setTagName(element, "div");5148 }5149 }5150 // "Block-extend the active range, and let new range be the result."5151 newRange = blockExtend(globalRange);5152 // "Let node list be a list of nodes, initially empty."5153 var nodeList = [];5154 // "For each node node contained in new range, append node to node list if5155 // the last member of node list (if any) is not an ancestor of node; node5156 // is editable; node is an allowed child of "div"; and node's alignment5157 // value is not alignment."5158 nodeList = getContainedNodes(newRange, function(node) {5159 return isEditable(node)5160 && isAllowedChild(node, "div")5161 && getAlignmentValue(node) != alignment;5162 });5163 // "While node list is not empty:"5164 while (nodeList.length) {5165 // "Let sublist be a list of nodes, initially empty."5166 var sublist = [];5167 // "Remove the first member of node list and append it to sublist."5168 sublist.push(nodeList.shift());5169 // "While node list is not empty, and the first member of node list is5170 // the nextSibling of the last member of sublist, remove the first5171 // member of node list and append it to sublist."5172 while (nodeList.length5173 && nodeList[0] == sublist[sublist.length - 1].nextSibling) {5174 sublist.push(nodeList.shift());5175 }5176 // "Wrap sublist. Sibling criteria returns true for any div that has5177 // one or both of the following two attributes and no other attributes,5178 // and false otherwise:"5179 //5180 // * "An align attribute whose value is an ASCII case-insensitive5181 // match for alignment.5182 // * "A style attribute which sets exactly one CSS property5183 // (including unrecognized or invalid attributes), which is5184 // "text-align", which is set to alignment.5185 //5186 // "New parent instructions are to call createElement("div") on the5187 // context object, then set its CSS property "text-align" to alignment5188 // and return the result."5189 wrap(sublist,5190 function(node) {5191 return isHtmlElement(node, "div")5192 && [].every.call(node.attributes, function(attr) {5193 return (attr.name == "align" && attr.value.toLowerCase() == alignment)5194 || (attr.name == "style" && node.style.length == 1 && node.style.textAlign == alignment);5195 });5196 },5197 function() {5198 var newParent = document.createElement("div");5199 newParent.setAttribute("style", "text-align: " + alignment);5200 return newParent;5201 }5202 );5203 }5204 // "Restore states and values from overrides."5205 restoreStatesAndValues(overrides);5206}5207//@}5208///// Automatic linking /////5209//@{5210// "An autolinkable URL is a string of the following form:"5211var autolinkableUrlRegexp =5212 // "Either a string matching the scheme pattern from RFC 3986 section 3.15213 // followed by the literal string ://, or the literal string mailto:;5214 // followed by"5215 //5216 // From the RFC: scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )5217 "([a-zA-Z][a-zA-Z0-9+.-]*://|mailto:)"5218 // "Zero or more characters other than space characters; followed by"5219 + "[^ \t\n\f\r]*"5220 // "A character that is not one of the ASCII characters !"'(),-.:;<>[]`{}."5221 + "[^!\"'(),\\-.:;<>[\\]`{}]";5222// "A valid e-mail address is a string that matches the ABNF production 1*(5223// atext / "." ) "@" ldh-str *( "." ldh-str ) where atext is defined in RFC5224// 5322 section 3.2.3, and ldh-str is defined in RFC 1034 section 3.5."5225//5226// atext: ALPHA / DIGIT / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" /5227// "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~"5228//5229//<ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>5230//<let-dig-hyp> ::= <let-dig> | "-"5231//<let-dig> ::= <letter> | <digit>5232var validEmailRegexp =5233 "[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~.]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*";5234function autolink(node, endOffset) {5235 // "While (node, end offset)'s previous equivalent point is not null, set5236 // it to its previous equivalent point."5237 while (getPreviousEquivalentPoint(node, endOffset)) {5238 var prev = getPreviousEquivalentPoint(node, endOffset);5239 node = prev[0];5240 endOffset = prev[1];5241 }5242 // "If node is not a Text node, or has an a ancestor, do nothing and abort5243 // these steps."5244 if (node.nodeType != Node.TEXT_NODE5245 || getAncestors(node).some(function(ancestor) { return isHtmlElement(ancestor, "a") })) {5246 return;5247 }5248 // "Let search be the largest substring of node's data whose end is end5249 // offset and that contains no space characters."5250 var search = /[^ \t\n\f\r]*$/.exec(node.substringData(0, endOffset))[0];5251 // "If some substring of search is an autolinkable URL:"5252 if (new RegExp(autolinkableUrlRegexp).test(search)) {...

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...3251 }3252 3253 return null;3254}3255function getPreviousEquivalentPoint(node, offset) {3256 3257 if (getNodeLength(node) == 0) {3258 return null;3259 }3260 3261 3262 if (offset == 03263 && node.parentNode3264 && isInlineNode(node)) {3265 return [node.parentNode, getNodeIndex(node)];3266 }3267 3268 3269 3270 if (0 <= offset - 13271 && offset - 1 < node.childNodes.length3272 && getNodeLength(node.childNodes[offset - 1]) != 03273 && isInlineNode(node.childNodes[offset - 1])) {3274 return [node.childNodes[offset - 1], getNodeLength(node.childNodes[offset - 1])];3275 }3276 3277 return null;3278}3279function getFirstEquivalentPoint(node, offset) {3280 3281 3282 var prev;3283 while (prev = getPreviousEquivalentPoint(node, offset)) {3284 node = prev[0];3285 offset = prev[1];3286 }3287 3288 return [node, offset];3289}3290function getLastEquivalentPoint(node, offset) {3291 3292 3293 var next;3294 while (next = getNextEquivalentPoint(node, offset)) {3295 node = next[0];3296 offset = next[1];3297 }3298 3299 return [node, offset];3300}3301function isBlockStartPoint(node, offset) {3302 return (!node.parentNode && offset == 0)3303 || (0 <= offset - 13304 && offset - 1 < node.childNodes.length3305 && isVisible(node.childNodes[offset - 1])3306 && (isBlockNode(node.childNodes[offset - 1])3307 || isHtmlElement(node.childNodes[offset - 1], "br")));3308}3309function isBlockEndPoint(node, offset) {3310 return (!node.parentNode && offset == getNodeLength(node))3311 || (offset < node.childNodes.length3312 && isVisible(node.childNodes[offset])3313 && isBlockNode(node.childNodes[offset]));3314}3315function isBlockBoundaryPoint(node, offset) {3316 return isBlockStartPoint(node, offset)3317 || isBlockEndPoint(node, offset);3318}3319function blockExtend(range) {3320 3321 3322 var startNode = range.startContainer;3323 var startOffset = range.startOffset;3324 var endNode = range.endContainer;3325 var endOffset = range.endOffset;3326 3327 3328 3329 var liAncestors = getAncestors(startNode).concat(startNode)3330 .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3331 .slice(-1);3332 if (liAncestors.length) {3333 startOffset = getNodeIndex(liAncestors[0]);3334 startNode = liAncestors[0].parentNode;3335 }3336 3337 3338 if (!isBlockStartPoint(startNode, startOffset)) do {3339 3340 3341 if (startOffset == 0) {3342 startOffset = getNodeIndex(startNode);3343 startNode = startNode.parentNode;3344 3345 } else {3346 startOffset--;3347 }3348 3349 3350 } while (!isBlockBoundaryPoint(startNode, startOffset));3351 3352 3353 while (startOffset == 03354 && startNode.parentNode) {3355 startOffset = getNodeIndex(startNode);3356 startNode = startNode.parentNode;3357 }3358 3359 3360 3361 var liAncestors = getAncestors(endNode).concat(endNode)3362 .filter(function(ancestor) { return isHtmlElement(ancestor, "li") })3363 .slice(-1);3364 if (liAncestors.length) {3365 endOffset = 1 + getNodeIndex(liAncestors[0]);3366 endNode = liAncestors[0].parentNode;3367 }3368 3369 3370 if (!isBlockEndPoint(endNode, endOffset)) do {3371 3372 3373 if (endOffset == getNodeLength(endNode)) {3374 endOffset = 1 + getNodeIndex(endNode);3375 endNode = endNode.parentNode;3376 3377 } else {3378 endOffset++;3379 }3380 3381 3382 } while (!isBlockBoundaryPoint(endNode, endOffset));3383 3384 3385 3386 while (endOffset == getNodeLength(endNode)3387 && endNode.parentNode) {3388 endOffset = 1 + getNodeIndex(endNode);3389 endNode = endNode.parentNode;3390 }3391 3392 3393 var newRange = startNode.ownerDocument.createRange();3394 newRange.setStart(startNode, startOffset);3395 newRange.setEnd(endNode, endOffset);3396 3397 return newRange;3398}3399function followsLineBreak(node) {3400 3401 var offset = 0;3402 3403 while (!isBlockBoundaryPoint(node, offset)) {3404 3405 3406 if (0 <= offset - 13407 && offset - 1 < node.childNodes.length3408 && isVisible(node.childNodes[offset - 1])) {3409 return false;3410 }3411 3412 3413 if (offset == 03414 || !node.hasChildNodes()) {3415 offset = getNodeIndex(node);3416 node = node.parentNode;3417 3418 3419 } else {3420 node = node.childNodes[offset - 1];3421 offset = getNodeLength(node);3422 }3423 }3424 3425 return true;3426}3427function precedesLineBreak(node) {3428 3429 var offset = getNodeLength(node);3430 3431 while (!isBlockBoundaryPoint(node, offset)) {3432 3433 if (offset < node.childNodes.length3434 && isVisible(node.childNodes[offset])) {3435 return false;3436 }3437 3438 3439 if (offset == getNodeLength(node)3440 || !node.hasChildNodes()) {3441 offset = 1 + getNodeIndex(node);3442 node = node.parentNode;3443 3444 3445 } else {3446 node = node.childNodes[offset];3447 offset = 0;3448 }3449 }3450 3451 return true;3452}3453function recordCurrentOverrides() {3454 3455 3456 var overrides = [];3457 3458 3459 if (getValueOverride("createlink") !== undefined) {3460 overrides.push(["createlink", getValueOverride("createlink")]);3461 }3462 3463 3464 3465 3466 ["bold", "italic", "strikethrough", "subscript", "superscript",3467 "underline"].forEach(function(command) {3468 if (getStateOverride(command) !== undefined) {3469 overrides.push([command, getStateOverride(command)]);3470 }3471 });3472 3473 3474 3475 ["fontname", "fontsize", "forecolor",3476 "hilitecolor"].forEach(function(command) {3477 if (getValueOverride(command) !== undefined) {3478 overrides.push([command, getValueOverride(command)]);3479 }3480 });3481 3482 return overrides;3483}3484function recordCurrentStatesAndValues() {3485 3486 3487 var overrides = [];3488 3489 3490 var node = getAllEffectivelyContainedNodes(getActiveRange())3491 .filter(isFormattableNode)[0];3492 3493 if (!node) {3494 return overrides;3495 }3496 3497 3498 overrides.push(["createlink", getEffectiveCommandValue(node, "createlink")]);3499 3500 3501 3502 3503 3504 ["bold", "italic", "strikethrough", "subscript", "superscript",3505 "underline"].forEach(function(command) {3506 if (commands[command].inlineCommandActivatedValues3507 .indexOf(getEffectiveCommandValue(node, command)) != -1) {3508 overrides.push([command, true]);3509 } else {3510 overrides.push([command, false]);3511 }3512 });3513 3514 3515 ["fontname", "fontsize", "forecolor", "hilitecolor"].forEach(function(command) {3516 overrides.push([command, commands[command].value()]);3517 });3518 3519 3520 overrides.push(["fontsize", getEffectiveCommandValue(node, "fontsize")]);3521 3522 return overrides;3523}3524function restoreStatesAndValues(overrides) {3525 3526 3527 var node = getAllEffectivelyContainedNodes(getActiveRange())3528 .filter(isFormattableNode)[0];3529 3530 3531 if (node) {3532 for (var i = 0; i < overrides.length; i++) {3533 var command = overrides[i][0];3534 var override = overrides[i][1];3535 3536 3537 3538 if (typeof override == "boolean"3539 && myQueryCommandState(command) != override) {3540 commands[command].action("");3541 3542 3543 3544 3545 } else if (typeof override == "string"3546 && command != "createlink"3547 && command != "fontsize"3548 && !areEquivalentValues(command, myQueryCommandValue(command), override)) {3549 commands[command].action(override);3550 3551 3552 3553 3554 3555 3556 } else if (typeof override == "string"3557 && command == "createlink"3558 && (3559 (3560 getValueOverride("createlink") !== undefined3561 && getValueOverride("createlink") !== override3562 ) || (3563 getValueOverride("createlink") === undefined3564 && getEffectiveCommandValue(node, "createlink") !== override3565 )3566 )) {3567 commands.createlink.action(override);3568 3569 3570 3571 3572 3573 } else if (typeof override == "string"3574 && command == "fontsize"3575 && (3576 (3577 getValueOverride("fontsize") !== undefined3578 && getValueOverride("fontsize") !== override3579 ) || (3580 getValueOverride("fontsize") === undefined3581 && !areLooselyEquivalentValues(command, getEffectiveCommandValue(node, "fontsize"), override)3582 )3583 )) {3584 3585 3586 override = getLegacyFontSize(override);3587 3588 3589 commands.fontsize.action(override);3590 3591 } else {3592 continue;3593 }3594 3595 3596 node = getAllEffectivelyContainedNodes(getActiveRange())3597 .filter(isFormattableNode)[0]3598 || node;3599 }3600 3601 } else {3602 for (var i = 0; i < overrides.length; i++) {3603 var command = overrides[i][0];3604 var override = overrides[i][1];3605 3606 3607 if (typeof override == "boolean") {3608 setStateOverride(command, override);3609 }3610 3611 3612 if (typeof override == "string") {3613 setValueOverride(command, override);3614 }3615 }3616 }3617}3618function deleteSelection(flags) {3619 if (flags === undefined) {3620 flags = {};3621 }3622 var blockMerging = "blockMerging" in flags ? Boolean(flags.blockMerging) : true;3623 var stripWrappers = "stripWrappers" in flags ? Boolean(flags.stripWrappers) : true;3624 var direction = "direction" in flags ? flags.direction : "forward";3625 3626 if (!getActiveRange()) {3627 return;3628 }3629 3630 canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);3631 3632 canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset);3633 3634 3635 var start = getLastEquivalentPoint(getActiveRange().startContainer, getActiveRange().startOffset);3636 var startNode = start[0];3637 var startOffset = start[1];3638 3639 3640 var end = getFirstEquivalentPoint(getActiveRange().endContainer, getActiveRange().endOffset);3641 var endNode = end[0];3642 var endOffset = end[1];3643 3644 if (getPosition(endNode, endOffset, startNode, startOffset) !== "after") {3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 if (direction == "forward") {3656 if (getSelection().rangeCount) {3657 getSelection().collapseToStart();3658 }3659 getActiveRange().collapse(true);3660 3661 } else {3662 getSelection().collapseToEnd();3663 getActiveRange().collapse(false);3664 }3665 3666 return;3667 }3668 3669 3670 if (startNode.nodeType == Node.TEXT_NODE3671 && startOffset == 0) {3672 startOffset = getNodeIndex(startNode);3673 startNode = startNode.parentNode;3674 }3675 3676 3677 if (endNode.nodeType == Node.TEXT_NODE3678 && endOffset == getNodeLength(endNode)) {3679 endOffset = 1 + getNodeIndex(endNode);3680 endNode = endNode.parentNode;3681 }3682 3683 3684 getSelection().collapse(startNode, startOffset);3685 getActiveRange().setStart(startNode, startOffset);3686 3687 getSelection().extend(endNode, endOffset);3688 getActiveRange().setEnd(endNode, endOffset);3689 3690 var startBlock = getActiveRange().startContainer;3691 3692 3693 while (inSameEditingHost(startBlock, startBlock.parentNode)3694 && isInlineNode(startBlock)) {3695 startBlock = startBlock.parentNode;3696 }3697 3698 3699 3700 if ((!isBlockNode(startBlock) && !isEditingHost(startBlock))3701 || !isAllowedChild("span", startBlock)3702 || isHtmlElement(startBlock, ["td", "th"])) {3703 startBlock = null;3704 }3705 3706 var endBlock = getActiveRange().endContainer;3707 3708 3709 while (inSameEditingHost(endBlock, endBlock.parentNode)3710 && isInlineNode(endBlock)) {3711 endBlock = endBlock.parentNode;3712 }3713 3714 3715 3716 if ((!isBlockNode(endBlock) && !isEditingHost(endBlock))3717 || !isAllowedChild("span", endBlock)3718 || isHtmlElement(endBlock, ["td", "th"])) {3719 endBlock = null;3720 }3721 3722 var overrides = recordCurrentStatesAndValues();3723 3724 3725 if (startNode == endNode3726 && isEditable(startNode)3727 && startNode.nodeType == Node.TEXT_NODE) {3728 3729 3730 startNode.deleteData(startOffset, endOffset - startOffset);3731 3732 3733 canonicalizeWhitespace(startNode, startOffset, false);3734 3735 3736 if (direction == "forward") {3737 if (getSelection().rangeCount) {3738 getSelection().collapseToStart();3739 }3740 getActiveRange().collapse(true);3741 3742 } else {3743 getSelection().collapseToEnd();3744 getActiveRange().collapse(false);3745 }3746 3747 restoreStatesAndValues(overrides);3748 3749 return;3750 }3751 3752 3753 3754 if (isEditable(startNode)3755 && startNode.nodeType == Node.TEXT_NODE) {3756 startNode.deleteData(startOffset, getNodeLength(startNode) - startOffset);3757 }3758 3759 3760 3761 3762 3763 var nodeList = getContainedNodes(getActiveRange(),3764 function(node) {3765 return isEditable(node)3766 && !isHtmlElement(node, ["thead", "tbody", "tfoot", "tr", "th", "td"]);3767 }3768 );3769 3770 for (var i = 0; i < nodeList.length; i++) {3771 var node = nodeList[i];3772 3773 var parent_ = node.parentNode;3774 3775 parent_.removeChild(node);3776 3777 3778 3779 if (![].some.call(getBlockNodeOf(parent_).childNodes, isVisible)3780 && (isEditable(parent_) || isEditingHost(parent_))) {3781 parent_.appendChild(document.createElement("br"));3782 }3783 3784 3785 3786 3787 if (stripWrappers3788 || (!isAncestor(parent_, startNode) && parent_ != startNode)) {3789 while (isEditable(parent_)3790 && isInlineNode(parent_)3791 && getNodeLength(parent_) == 0) {3792 var grandparent = parent_.parentNode;3793 grandparent.removeChild(parent_);3794 parent_ = grandparent;3795 }3796 }3797 }3798 3799 3800 if (isEditable(endNode)3801 && endNode.nodeType == Node.TEXT_NODE) {3802 endNode.deleteData(0, endOffset);3803 }3804 3805 3806 canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);3807 3808 3809 canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);3810 3811 3812 3813 if (!blockMerging3814 || !startBlock3815 || !endBlock3816 || !inSameEditingHost(startBlock, endBlock)3817 || startBlock == endBlock) {3818 3819 3820 if (direction == "forward") {3821 if (getSelection().rangeCount) {3822 getSelection().collapseToStart();3823 }3824 getActiveRange().collapse(true);3825 3826 } else {3827 if (getSelection().rangeCount) {3828 getSelection().collapseToEnd();3829 }3830 getActiveRange().collapse(false);3831 }3832 3833 restoreStatesAndValues(overrides);3834 3835 return;3836 }3837 3838 3839 if (startBlock.children.length == 13840 && isCollapsedBlockProp(startBlock.firstChild)) {3841 startBlock.removeChild(startBlock.firstChild);3842 }3843 3844 if (isAncestor(startBlock, endBlock)) {3845 3846 var referenceNode = endBlock;3847 3848 3849 while (referenceNode.parentNode != startBlock) {3850 referenceNode = referenceNode.parentNode;3851 }3852 3853 3854 3855 getSelection().collapse(startBlock, getNodeIndex(referenceNode));3856 getActiveRange().setStart(startBlock, getNodeIndex(referenceNode));3857 getActiveRange().collapse(true);3858 3859 if (!endBlock.hasChildNodes()) {3860 3861 3862 3863 3864 while (isEditable(endBlock)3865 && endBlock.parentNode.childNodes.length == 13866 && endBlock.parentNode != startBlock) {3867 var parent_ = endBlock;3868 parent_.removeChild(endBlock);3869 endBlock = parent_;3870 }3871 3872 3873 3874 3875 if (isEditable(endBlock)3876 && !isInlineNode(endBlock)3877 && isInlineNode(endBlock.previousSibling)3878 && isInlineNode(endBlock.nextSibling)) {3879 endBlock.parentNode.insertBefore(document.createElement("br"), endBlock.nextSibling);3880 }3881 3882 if (isEditable(endBlock)) {3883 endBlock.parentNode.removeChild(endBlock);3884 }3885 3886 restoreStatesAndValues(overrides);3887 3888 return;3889 }3890 3891 3892 if (!isInlineNode(endBlock.firstChild)) {3893 restoreStatesAndValues(overrides);3894 return;3895 }3896 3897 var children = [];3898 3899 children.push(endBlock.firstChild);3900 3901 3902 3903 while (!isHtmlElement(children[children.length - 1], "br")3904 && isInlineNode(children[children.length - 1].nextSibling)) {3905 children.push(children[children.length - 1].nextSibling);3906 }3907 3908 var values = recordValues(children);3909 3910 3911 while (children[0].parentNode != startBlock) {3912 splitParent(children);3913 }3914 3915 3916 if (isEditable(children[0].previousSibling)3917 && isHtmlElement(children[0].previousSibling, "br")) {3918 children[0].parentNode.removeChild(children[0].previousSibling);3919 }3920 3921 } else if (isDescendant(startBlock, endBlock)) {3922 3923 3924 getSelection().collapse(startBlock, getNodeLength(startBlock));3925 getActiveRange().setStart(startBlock, getNodeLength(startBlock));3926 getActiveRange().collapse(true);3927 3928 var referenceNode = startBlock;3929 3930 3931 while (referenceNode.parentNode != endBlock) {3932 referenceNode = referenceNode.parentNode;3933 }3934 3935 3936 if (isInlineNode(referenceNode.nextSibling)3937 && isHtmlElement(startBlock.lastChild, "br")) {3938 startBlock.removeChild(startBlock.lastChild);3939 }3940 3941 var nodesToMove = [];3942 3943 3944 if (referenceNode.nextSibling3945 && !isBlockNode(referenceNode.nextSibling)) {3946 nodesToMove.push(referenceNode.nextSibling);3947 }3948 3949 3950 3951 if (nodesToMove.length3952 && !isHtmlElement(nodesToMove[nodesToMove.length - 1], "br")3953 && nodesToMove[nodesToMove.length - 1].nextSibling3954 && !isBlockNode(nodesToMove[nodesToMove.length - 1].nextSibling)) {3955 nodesToMove.push(nodesToMove[nodesToMove.length - 1].nextSibling);3956 }3957 3958 var values = recordValues(nodesToMove);3959 3960 3961 nodesToMove.forEach(function(node) {3962 movePreservingRanges(node, startBlock, -1);3963 });3964 3965 } else {3966 3967 3968 getSelection().collapse(startBlock, getNodeLength(startBlock));3969 getActiveRange().setStart(startBlock, getNodeLength(startBlock));3970 getActiveRange().collapse(true);3971 3972 3973 if (isInlineNode(endBlock.firstChild)3974 && isHtmlElement(startBlock.lastChild, "br")) {3975 startBlock.removeChild(startBlock.lastChild);3976 }3977 3978 3979 var values = recordValues([].slice.call(endBlock.childNodes));3980 3981 3982 while (endBlock.hasChildNodes()) {3983 movePreservingRanges(endBlock.firstChild, startBlock, -1);3984 }3985 3986 3987 3988 while (!endBlock.hasChildNodes()) {3989 var parent_ = endBlock.parentNode;3990 parent_.removeChild(endBlock);3991 endBlock = parent_;3992 }3993 }3994 3995 var ancestor = startBlock;3996 3997 3998 3999 4000 while (getInclusiveAncestors(ancestor).some(function(node) {4001 return inSameEditingHost(ancestor, node)4002 && (4003 (isHtmlElement(node, "ol") && isHtmlElement(node.nextSibling, "ol"))4004 || (isHtmlElement(node, "ul") && isHtmlElement(node.nextSibling, "ul"))4005 ) && inSameEditingHost(ancestor, node.nextSibling);4006 })) {4007 4008 4009 4010 while (!(4011 isHtmlElement(ancestor, "ol")4012 && isHtmlElement(ancestor.nextSibling, "ol")4013 && inSameEditingHost(ancestor, ancestor.nextSibling)4014 ) && !(4015 isHtmlElement(ancestor, "ul")4016 && isHtmlElement(ancestor.nextSibling, "ul")4017 && inSameEditingHost(ancestor, ancestor.nextSibling)4018 )) {4019 ancestor = ancestor.parentNode;4020 }4021 4022 4023 4024 while (ancestor.nextSibling.hasChildNodes()) {4025 movePreservingRanges(ancestor.nextSibling.firstChild, ancestor, -1);4026 }4027 4028 ancestor.parentNode.removeChild(ancestor.nextSibling);4029 }4030 4031 restoreValues(values);4032 4033 4034 if (!startBlock.hasChildNodes()) {4035 startBlock.appendChild(document.createElement("br"));4036 }4037 4038 removeExtraneousLineBreaksAtTheEndOf(startBlock);4039 4040 restoreStatesAndValues(overrides);4041}4042function splitParent(nodeList) {4043 4044 var originalParent = nodeList[0].parentNode;4045 4046 4047 if (!isEditable(originalParent)4048 || !originalParent.parentNode) {4049 return;4050 }4051 4052 4053 if (nodeList.indexOf(originalParent.firstChild) != -1) {4054 removeExtraneousLineBreaksBefore(originalParent);4055 }4056 4057 4058 4059 var followsLineBreak_ = nodeList.indexOf(originalParent.firstChild) != -14060 && followsLineBreak(originalParent);4061 4062 4063 4064 var precedesLineBreak_ = nodeList.indexOf(originalParent.lastChild) != -14065 && precedesLineBreak(originalParent);4066 4067 4068 if (nodeList.indexOf(originalParent.firstChild) == -14069 && nodeList.indexOf(originalParent.lastChild) != -1) {4070 4071 4072 4073 for (var i = nodeList.length - 1; i >= 0; i--) {4074 movePreservingRanges(nodeList[i], originalParent.parentNode, 1 + getNodeIndex(originalParent));4075 }4076 4077 4078 4079 4080 if (precedesLineBreak_4081 && !precedesLineBreak(nodeList[nodeList.length - 1])) {4082 nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4083 }4084 4085 removeExtraneousLineBreaksAtTheEndOf(originalParent);4086 4087 return;4088 }4089 4090 if (nodeList.indexOf(originalParent.firstChild) == -1) {4091 4092 4093 var clonedParent = originalParent.cloneNode(false);4094 4095 originalParent.removeAttribute("id");4096 4097 4098 originalParent.parentNode.insertBefore(clonedParent, originalParent);4099 4100 4101 4102 while (nodeList[0].previousSibling) {4103 movePreservingRanges(originalParent.firstChild, clonedParent, clonedParent.childNodes.length);4104 }4105 }4106 4107 4108 for (var i = 0; i < nodeList.length; i++) {4109 movePreservingRanges(nodeList[i], originalParent.parentNode, getNodeIndex(originalParent));4110 }4111 4112 4113 4114 if (followsLineBreak_4115 && !followsLineBreak(nodeList[0])) {4116 nodeList[0].parentNode.insertBefore(document.createElement("br"), nodeList[0]);4117 }4118 4119 4120 4121 4122 if (isInlineNode(nodeList[nodeList.length - 1])4123 && !isHtmlElement(nodeList[nodeList.length - 1], "br")4124 && isHtmlElement(originalParent.firstChild, "br")4125 && !isInlineNode(originalParent)) {4126 originalParent.removeChild(originalParent.firstChild);4127 }4128 4129 if (!originalParent.hasChildNodes()) {4130 4131 originalParent.parentNode.removeChild(originalParent);4132 4133 4134 4135 4136 if (precedesLineBreak_4137 && !precedesLineBreak(nodeList[nodeList.length - 1])) {4138 nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);4139 }4140 4141 } else {4142 removeExtraneousLineBreaksBefore(originalParent);4143 }4144 4145 4146 4147 if (!nodeList[nodeList.length - 1].nextSibling4148 && nodeList[nodeList.length - 1].parentNode) {4149 removeExtraneousLineBreaksAtTheEndOf(nodeList[nodeList.length - 1].parentNode);4150 }4151}4152function removePreservingDescendants(node) {4153 if (node.hasChildNodes()) {4154 splitParent([].slice.call(node.childNodes));4155 } else {4156 node.parentNode.removeChild(node);4157 }4158}4159function canonicalSpaceSequence(n, nonBreakingStart, nonBreakingEnd) {4160 4161 if (n == 0) {4162 return "";4163 }4164 4165 4166 if (n == 1 && !nonBreakingStart && !nonBreakingEnd) {4167 return " ";4168 }4169 4170 if (n == 1) {4171 return "\xa0";4172 }4173 4174 var buffer = "";4175 4176 4177 var repeatedPair;4178 if (nonBreakingStart) {4179 repeatedPair = "\xa0 ";4180 } else {4181 repeatedPair = " \xa0";4182 }4183 4184 4185 while (n > 3) {4186 buffer += repeatedPair;4187 n -= 2;4188 }4189 4190 4191 if (n == 3) {4192 buffer +=4193 !nonBreakingStart && !nonBreakingEnd ? " \xa0 "4194 : nonBreakingStart && !nonBreakingEnd ? "\xa0\xa0 "4195 : !nonBreakingStart && nonBreakingEnd ? " \xa0\xa0"4196 : nonBreakingStart && nonBreakingEnd ? "\xa0 \xa0"4197 : "impossible";4198 4199 4200 } else {4201 buffer +=4202 !nonBreakingStart && !nonBreakingEnd ? "\xa0 "4203 : nonBreakingStart && !nonBreakingEnd ? "\xa0 "4204 : !nonBreakingStart && nonBreakingEnd ? " \xa0"4205 : nonBreakingStart && nonBreakingEnd ? "\xa0\xa0"4206 : "impossible";4207 }4208 4209 return buffer;4210}4211function canonicalizeWhitespace(node, offset, fixCollapsedSpace) {4212 if (fixCollapsedSpace === undefined) {4213 4214 4215 fixCollapsedSpace = true;4216 }4217 4218 if (!isEditable(node) && !isEditingHost(node)) {4219 return;4220 }4221 4222 var startNode = node;4223 var startOffset = offset;4224 4225 while (true) {4226 4227 4228 4229 if (0 <= startOffset - 14230 && inSameEditingHost(startNode, startNode.childNodes[startOffset - 1])) {4231 startNode = startNode.childNodes[startOffset - 1];4232 startOffset = getNodeLength(startNode);4233 4234 4235 4236 4237 } else if (startOffset == 04238 && !followsLineBreak(startNode)4239 && inSameEditingHost(startNode, startNode.parentNode)) {4240 startOffset = getNodeIndex(startNode);4241 startNode = startNode.parentNode;4242 4243 4244 4245 4246 4247 } else if (startNode.nodeType == Node.TEXT_NODE4248 && ["pre", "pre-wrap"].indexOf(getComputedStyle(startNode.parentNode).whiteSpace) == -14249 && startOffset != 04250 && /[ \xa0]/.test(startNode.data[startOffset - 1])) {4251 startOffset--;4252 4253 } else {4254 break;4255 }4256 }4257 4258 var endNode = startNode;4259 var endOffset = startOffset;4260 4261 var length = 0;4262 4263 4264 var collapseSpaces = startOffset == 0 && followsLineBreak(startNode);4265 4266 while (true) {4267 4268 4269 if (endOffset < endNode.childNodes.length4270 && inSameEditingHost(endNode, endNode.childNodes[endOffset])) {4271 endNode = endNode.childNodes[endOffset];4272 endOffset = 0;4273 4274 4275 4276 4277 } else if (endOffset == getNodeLength(endNode)4278 && !precedesLineBreak(endNode)4279 && inSameEditingHost(endNode, endNode.parentNode)) {4280 endOffset = 1 + getNodeIndex(endNode);4281 endNode = endNode.parentNode;4282 4283 4284 4285 4286 } else if (endNode.nodeType == Node.TEXT_NODE4287 && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14288 && endOffset != getNodeLength(endNode)4289 && /[ \xa0]/.test(endNode.data[endOffset])) {4290 4291 4292 4293 4294 if (fixCollapsedSpace4295 && collapseSpaces4296 && " " == endNode.data[endOffset]) {4297 endNode.deleteData(endOffset, 1);4298 continue;4299 }4300 4301 4302 collapseSpaces = " " == endNode.data[endOffset];4303 4304 endOffset++;4305 4306 length++;4307 4308 } else {4309 break;4310 }4311 }4312 4313 4314 if (fixCollapsedSpace) {4315 while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4316 4317 4318 4319 if (0 <= endOffset - 14320 && endOffset - 1 < endNode.childNodes.length4321 && inSameEditingHost(endNode, endNode.childNodes[endOffset - 1])) {4322 endNode = endNode.childNodes[endOffset - 1];4323 endOffset = getNodeLength(endNode);4324 4325 4326 4327 } else if (endOffset == 04328 && inSameEditingHost(endNode, endNode.parentNode)) {4329 endOffset = getNodeIndex(endNode);4330 endNode = endNode.parentNode;4331 4332 4333 4334 4335 } else if (endNode.nodeType == Node.TEXT_NODE4336 && ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -14337 && endOffset == getNodeLength(endNode)4338 && endNode.data[endNode.data.length - 1] == " "4339 && precedesLineBreak(endNode)) {4340 4341 endOffset--;4342 4343 length--;4344 4345 endNode.deleteData(endOffset, 1);4346 4347 } else {4348 break;4349 }4350 }4351 }4352 4353 4354 4355 4356 4357 var replacementWhitespace = canonicalSpaceSequence(length,4358 startOffset == 0 && followsLineBreak(startNode),4359 endOffset == getNodeLength(endNode) && precedesLineBreak(endNode));4360 4361 while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {4362 4363 4364 if (startOffset < startNode.childNodes.length) {4365 startNode = startNode.childNodes[startOffset];4366 startOffset = 0;4367 4368 4369 4370 } else if (startNode.nodeType != Node.TEXT_NODE4371 || startOffset == getNodeLength(startNode)) {4372 startOffset = 1 + getNodeIndex(startNode);4373 startNode = startNode.parentNode;4374 4375 } else {4376 4377 4378 var element = replacementWhitespace[0];4379 replacementWhitespace = replacementWhitespace.slice(1);4380 4381 4382 if (element != startNode.data[startOffset]) {4383 4384 startNode.insertData(startOffset, element);4385 4386 startNode.deleteData(startOffset + 1, 1);4387 }4388 4389 startOffset++;4390 }4391 }4392}4393function indentNodes(nodeList) {4394 4395 if (!nodeList.length) {4396 return;4397 }4398 4399 var firstNode = nodeList[0];4400 4401 if (isHtmlElement(firstNode.parentNode, ["OL", "UL"])) {4402 4403 var tag = firstNode.parentNode.tagName;4404 4405 4406 4407 4408 wrap(nodeList,4409 function(node) { return isHtmlElement(node, tag) },4410 function() { return firstNode.ownerDocument.createElement(tag) });4411 4412 return;4413 }4414 4415 4416 4417 4418 var newParent = wrap(nodeList,4419 function(node) { return isSimpleIndentationElement(node) },4420 function() { return firstNode.ownerDocument.createElement("blockquote") });4421 4422 fixDisallowedAncestors(newParent);4423}4424function outdentNode(node) {4425 4426 if (!isEditable(node)) {4427 return;4428 }4429 4430 4431 if (isSimpleIndentationElement(node)) {4432 removePreservingDescendants(node);4433 return;4434 }4435 4436 if (isIndentationElement(node)) {4437 4438 node.removeAttribute("dir");4439 4440 node.style.margin = "";4441 node.style.padding = "";4442 node.style.border = "";4443 if (node.getAttribute("style") == ""4444 4445 || node.getAttribute("style") == "border-width: initial; border-color: initial; ") {4446 node.removeAttribute("style");4447 }4448 4449 setTagName(node, "div");4450 4451 return;4452 }4453 4454 var currentAncestor = node.parentNode;4455 4456 var ancestorList = [];4457 4458 4459 4460 while (isEditable(currentAncestor)4461 && currentAncestor.nodeType == Node.ELEMENT_NODE4462 && !isSimpleIndentationElement(currentAncestor)4463 && !isHtmlElement(currentAncestor, ["ol", "ul"])) {4464 ancestorList.push(currentAncestor);4465 currentAncestor = currentAncestor.parentNode;4466 }4467 4468 if (!isEditable(currentAncestor)4469 || !isSimpleIndentationElement(currentAncestor)) {4470 4471 currentAncestor = node.parentNode;4472 4473 ancestorList = [];4474 4475 4476 4477 while (isEditable(currentAncestor)4478 && currentAncestor.nodeType == Node.ELEMENT_NODE4479 && !isIndentationElement(currentAncestor)4480 && !isHtmlElement(currentAncestor, ["ol", "ul"])) {4481 ancestorList.push(currentAncestor);4482 currentAncestor = currentAncestor.parentNode;4483 }4484 }4485 4486 4487 if (isHtmlElement(node, ["OL", "UL"])4488 && (!isEditable(currentAncestor)4489 || !isIndentationElement(currentAncestor))) {4490 4491 4492 node.removeAttribute("reversed");4493 node.removeAttribute("start");4494 node.removeAttribute("type");4495 4496 var children = [].slice.call(node.childNodes);4497 4498 4499 if (node.attributes.length4500 && !isHtmlElement(node.parentNode, ["OL", "UL"])) {4501 setTagName(node, "div");4502 4503 } else {4504 4505 4506 var values = recordValues([].slice.call(node.childNodes));4507 4508 removePreservingDescendants(node);4509 4510 restoreValues(values);4511 }4512 4513 for (var i = 0; i < children.length; i++) {4514 fixDisallowedAncestors(children[i]);4515 }4516 4517 return;4518 }4519 4520 4521 if (!isEditable(currentAncestor)4522 || !isIndentationElement(currentAncestor)) {4523 return;4524 }4525 4526 ancestorList.push(currentAncestor);4527 4528 var originalAncestor = currentAncestor;4529 4530 while (ancestorList.length) {4531 4532 4533 4534 currentAncestor = ancestorList.pop();4535 4536 4537 var target = node.parentNode == currentAncestor4538 ? node4539 : ancestorList[ancestorList.length - 1];4540 4541 4542 if (isInlineNode(target)4543 && !isHtmlElement(target, "BR")4544 && isHtmlElement(target.nextSibling, "BR")) {4545 target.parentNode.removeChild(target.nextSibling);4546 }4547 4548 4549 var precedingSiblings = [].slice.call(currentAncestor.childNodes, 0, getNodeIndex(target));4550 var followingSiblings = [].slice.call(currentAncestor.childNodes, 1 + getNodeIndex(target));4551 4552 indentNodes(precedingSiblings);4553 4554 indentNodes(followingSiblings);4555 }4556 4557 outdentNode(originalAncestor);4558}4559function toggleLists(tagName) {4560 4561 4562 var mode = getSelectionListState() == tagName ? "disable" : "enable";4563 var range = getActiveRange();4564 tagName = tagName.toUpperCase();4565 4566 4567 var otherTagName = tagName == "OL" ? "UL" : "OL";4568 4569 4570 4571 4572 4573 var items = [];4574 (function(){4575 for (4576 var ancestorContainer = range.endContainer;4577 ancestorContainer != range.commonAncestorContainer;4578 ancestorContainer = ancestorContainer.parentNode4579 ) {4580 if (isHtmlElement(ancestorContainer, "li")) {4581 items.unshift(ancestorContainer);4582 }4583 }4584 for (4585 var ancestorContainer = range.startContainer;4586 ancestorContainer;4587 ancestorContainer = ancestorContainer.parentNode4588 ) {4589 if (isHtmlElement(ancestorContainer, "li")) {4590 items.unshift(ancestorContainer);4591 }4592 }4593 })();4594 4595 items.forEach(normalizeSublists);4596 4597 var newRange = blockExtend(range);4598 4599 4600 4601 if (mode == "enable") {4602 getAllContainedNodes(newRange, function(node) {4603 return isEditable(node)4604 && isHtmlElement(node, otherTagName);4605 }).forEach(function(list) {4606 4607 4608 if ((isEditable(list.previousSibling) && isHtmlElement(list.previousSibling, tagName))4609 || (isEditable(list.nextSibling) && isHtmlElement(list.nextSibling, tagName))) {4610 4611 var children = [].slice.call(list.childNodes);4612 4613 4614 var values = recordValues(children);4615 4616 splitParent(children);4617 4618 4619 wrap(children, function(node) { return isHtmlElement(node, tagName) });4620 4621 restoreValues(values);4622 4623 } else {4624 setTagName(list, tagName);4625 }4626 });4627 }4628 4629 4630 4631 4632 4633 4634 4635 var nodeList = getContainedNodes(newRange, function(node) {4636 return isEditable(node)4637 && !isIndentationElement(node)4638 && (isHtmlElement(node, ["OL", "UL"])4639 || isHtmlElement(node.parentNode, ["OL", "UL"])4640 || isAllowedChild(node, "li"));4641 });4642 4643 4644 if (mode == "enable") {4645 nodeList = nodeList.filter(function(node) {4646 return !isHtmlElement(node, ["ol", "ul"])4647 || isHtmlElement(node.parentNode, ["ol", "ul"]);4648 });4649 }4650 4651 if (mode == "disable") {4652 while (nodeList.length) {4653 4654 var sublist = [];4655 4656 4657 sublist.push(nodeList.shift());4658 4659 4660 4661 if (isHtmlElement(sublist[0], tagName)) {4662 outdentNode(sublist[0]);4663 continue;4664 }4665 4666 4667 4668 4669 while (nodeList.length4670 && nodeList[0] == sublist[sublist.length - 1].nextSibling4671 && !isHtmlElement(nodeList[0], tagName)) {4672 sublist.push(nodeList.shift());4673 }4674 4675 var values = recordValues(sublist);4676 4677 splitParent(sublist);4678 4679 for (var i = 0; i < sublist.length; i++) {4680 fixDisallowedAncestors(sublist[i]);4681 }4682 4683 restoreValues(values);4684 }4685 4686 } else {4687 while (nodeList.length) {4688 4689 var sublist = [];4690 4691 4692 while (!sublist.length4693 || (nodeList.length4694 && nodeList[0] == sublist[sublist.length - 1].nextSibling)) {4695 4696 4697 4698 if (isHtmlElement(nodeList[0], ["p", "div"])) {4699 sublist.push(setTagName(nodeList[0], "li"));4700 nodeList.shift();4701 4702 4703 } else if (isHtmlElement(nodeList[0], ["li", "ol", "ul"])) {4704 sublist.push(nodeList.shift());4705 4706 } else {4707 4708 var nodesToWrap = [];4709 4710 4711 4712 4713 4714 4715 while (!nodesToWrap.length4716 || (nodeList.length4717 && nodeList[0] == nodesToWrap[nodesToWrap.length - 1].nextSibling4718 && isInlineNode(nodeList[0])4719 && isInlineNode(nodesToWrap[nodesToWrap.length - 1])4720 && !isHtmlElement(nodesToWrap[nodesToWrap.length - 1], "br"))) {4721 nodesToWrap.push(nodeList.shift());4722 }4723 4724 4725 4726 sublist.push(wrap(nodesToWrap,4727 undefined,4728 function() { return document.createElement("li") }));4729 }4730 }4731 4732 4733 4734 if (isHtmlElement(sublist[0].parentNode, tagName)4735 || sublist.every(function(node) { return isHtmlElement(node, ["ol", "ul"]) })) {4736 continue;4737 }4738 4739 4740 if (isHtmlElement(sublist[0].parentNode, otherTagName)) {4741 4742 4743 var values = recordValues(sublist);4744 4745 splitParent(sublist);4746 4747 4748 4749 4750 wrap(sublist,4751 function(node) { return isHtmlElement(node, tagName) },4752 function() { return document.createElement(tagName) });4753 4754 restoreValues(values);4755 4756 continue;4757 }4758 4759 4760 4761 4762 4763 fixDisallowedAncestors(wrap(sublist,4764 function(node) { return isHtmlElement(node, tagName) },4765 function() {4766 4767 4768 4769 4770 4771 if (!isEditable(sublist[0].parentNode)4772 || !isSimpleIndentationElement(sublist[0].parentNode)4773 || !isEditable(sublist[0].parentNode.previousSibling)4774 || !isHtmlElement(sublist[0].parentNode.previousSibling, tagName)) {4775 return document.createElement(tagName);4776 }4777 4778 4779 var list = sublist[0].parentNode.previousSibling;4780 4781 normalizeSublists(list.lastChild);4782 4783 4784 4785 4786 if (!isEditable(list.lastChild)4787 || !isHtmlElement(list.lastChild, tagName)) {4788 list.appendChild(document.createElement(tagName));4789 }4790 4791 return list.lastChild;4792 }4793 ));4794 }4795 }4796}4797function justifySelection(alignment) {4798 4799 var newRange = blockExtend(globalRange);4800 4801 4802 4803 4804 var elementList = getAllContainedNodes(newRange, function(node) {4805 return node.nodeType == Node.ELEMENT_NODE4806 && isEditable(node)4807 4808 && (4809 node.hasAttribute("align")4810 || node.style.textAlign != ""4811 || isHtmlElement(node, "center")4812 );4813 });4814 4815 for (var i = 0; i < elementList.length; i++) {4816 var element = elementList[i];4817 4818 4819 element.removeAttribute("align");4820 4821 4822 element.style.textAlign = "";4823 if (element.getAttribute("style") == "") {4824 element.removeAttribute("style");4825 }4826 4827 4828 if (isHtmlElement(element, ["div", "span", "center"])4829 && !element.attributes.length) {4830 removePreservingDescendants(element);4831 }4832 4833 4834 if (isHtmlElement(element, "center")4835 && element.attributes.length) {4836 setTagName(element, "div");4837 }4838 }4839 4840 newRange = blockExtend(globalRange);4841 4842 var nodeList = [];4843 4844 4845 4846 4847 nodeList = getContainedNodes(newRange, function(node) {4848 return isEditable(node)4849 && isAllowedChild(node, "div")4850 && getAlignmentValue(node) != alignment;4851 });4852 4853 while (nodeList.length) {4854 4855 var sublist = [];4856 4857 sublist.push(nodeList.shift());4858 4859 4860 4861 while (nodeList.length4862 && nodeList[0] == sublist[sublist.length - 1].nextSibling) {4863 sublist.push(nodeList.shift());4864 }4865 4866 4867 4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 wrap(sublist,4879 function(node) {4880 return isHtmlElement(node, "div")4881 && [].every.call(node.attributes, function(attr) {4882 return (attr.name == "align" && attr.value.toLowerCase() == alignment)4883 || (attr.name == "style" && node.style.length == 1 && node.style.textAlign == alignment);4884 });4885 },4886 function() {4887 var newParent = document.createElement("div");4888 newParent.setAttribute("style", "text-align: " + alignment);4889 return newParent;4890 }4891 );4892 }4893}4894var autolinkableUrlRegexp =4895 4896 4897 4898 4899 4900 "([a-zA-Z][a-zA-Z0-9+.-]*://|mailto:)"4901 4902 + "[^ \t\n\f\r]*"4903 4904 + "[^!\"'(),\\-.:;<>[\\]`{}]";4905var validEmailRegexp =4906 "[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~.]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*";4907function autolink(node, endOffset) {4908 4909 4910 while (getPreviousEquivalentPoint(node, endOffset)) {4911 var prev = getPreviousEquivalentPoint(node, endOffset);4912 node = prev[0];4913 endOffset = prev[1];4914 }4915 4916 4917 if (node.nodeType != Node.TEXT_NODE4918 || getAncestors(node).some(function(ancestor) { return isHtmlElement(ancestor, "a") })) {4919 return;4920 }4921 4922 4923 var search = /[^ \t\n\f\r]*$/.exec(node.substringData(0, endOffset))[0];4924 4925 if (new RegExp(autolinkableUrlRegexp).test(search)) {...

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Using AI Code Generation

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1var wpt = require("waypoint");2var wpt1 = new wpt.Waypoint();3var wpt2 = new wpt.Waypoint();4var wpt3 = new wpt.Waypoint();5var wpt4 = new wpt.Waypoint();6var wpt5 = new wpt.Waypoint();7var wpt6 = new wpt.Waypoint();8var wpt7 = new wpt.Waypoint();9wpt1.setLatitude(10);10wpt1.setLongitude(20);11wpt2.setLatitude(10);12wpt2.setLongitude(20);13wpt3.setLatitude(10);14wpt3.setLongitude(20);15wpt4.setLatitude(10);16wpt4.setLongitude(20);17wpt5.setLatitude(10);18wpt5.setLongitude(20);19wpt6.setLatitude(10);20wpt6.setLongitude(20);21wpt7.setLatitude(10);22wpt7.setLongitude(20);23var wptArr = [wpt1,wpt2,wpt3,wpt4,wpt5,wpt6,wpt7];24var wptArr1 = wpt.getPreviousEquivalentPoint(wptArr);25console.log(wptArr1);26var wpt = require("waypoint");27var wpt1 = new wpt.Waypoint();28var wpt2 = new wpt.Waypoint();29var wpt3 = new wpt.Waypoint();30var wpt4 = new wpt.Waypoint();31var wpt5 = new wpt.Waypoint();32var wpt6 = new wpt.Waypoint();33var wpt7 = new wpt.Waypoint();34wpt1.setLatitude(10);35wpt1.setLongitude(20);36wpt2.setLatitude(10);37wpt2.setLongitude(20);38wpt3.setLatitude(10);39wpt3.setLongitude(20);40wpt4.setLatitude(10);41wpt4.setLongitude(20);42wpt5.setLatitude(10);43wpt5.setLongitude(20);44wpt6.setLatitude(10);45wpt6.setLongitude(20);46wpt7.setLatitude(10);47wpt7.setLongitude(

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1var wpt = new Waypoint(0,0,0);2var prevWpt = wpt.getPreviousEquivalentPoint();3prevWpt.x = 1;4prevWpt.y = 2;5prevWpt.z = 3;6wpt.x = 5;7wpt.y = 6;8wpt.z = 7;9wpt.setPreviousEquivalentPoint(prevWpt);10wpt.getPreviousEquivalentPoint().x = 8;11wpt.getPreviousEquivalentPoint().setX(9);12wpt.getPreviousEquivalentPoint().setPreviousEquivalentPoint(new Waypoint(10,11,12));13wpt.getPreviousEquivalentPoint().getPreviousEquivalentPoint().x = 13;14wpt.getPreviousEquivalentPoint().getPreviousEquivalentPoint().setX(14);

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1var wpt = require('wpt');2var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9);3console.log(point);4var wpt = require('wpt');5var point = wpt.getPreviousEquivalentPoint(1,2);6console.log(point);7var wpt = require('wpt');8var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8);9console.log(point);10var wpt = require('wpt');11var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10);12console.log(point);13var wpt = require('wpt');14var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11);15console.log(point);16var wpt = require('wpt');17var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11,12);18console.log(point);19var wpt = require('wpt');20var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11,12,13);21console.log(point);22var wpt = require('wpt');23var point = wpt.getPreviousEquivalentPoint(1,2,3,4,5,6,7,8,9,10,11,12,13,14);24console.log(point);

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1var wpt = new WayPoint(1,1,1);2var wpt2 = new WayPoint(1,1,1);3var wpt3 = new WayPoint(1,1,2);4var wpt = new WayPoint(1,1,1);5var wpt2 = new WayPoint(1,1,1);6var wpt3 = new WayPoint(1,1,2);7var wpt = new WayPoint(1,1,1);8var wpt2 = new WayPoint(1,1,1);9var wpt3 = new WayPoint(1,1,2);10var wpt = new WayPoint(1,1,1);11var wpt2 = new WayPoint(1,1,1);12var wpt3 = new WayPoint(1,1,2);13var wpt = new WayPoint(1,1,1);14var wpt2 = new WayPoint(1,1,1);15var wpt3 = new WayPoint(1,1,2);

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Using AI Code Generation

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1var wpt = new Waypoint(0, 0, 0, 0, 0, 0, 0, 0);2var prev = wpt.getPreviousEquivalentPoint();3var route = new Route();4var wpt = new Waypoint(0, 0, 0, 0, 0, 0, 0, 0);5route.addWaypoint(wpt);6var prev = route.getPreviousEquivalentPoint();

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Using AI Code Generation

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1var wpt = require('wpt');2var point = wpt.getPreviousEquivalentPoint(2, 2, 4, 4);3var wpt = require('wpt');4var point = wpt.getPreviousEquivalentPoint(2, 2, 2, 2);5var wpt = require('wpt');6var point = wpt.getPreviousEquivalentPoint(2, 2, 2, 3);7var wpt = require('wpt');8var point = wpt.getPreviousEquivalentPoint(2, 2, 3, 2);9var wpt = require('wpt');10var point = wpt.getPreviousEquivalentPoint(2, 2, 3, 3);11var wpt = require('wpt');12var point = wpt.getPreviousEquivalentPoint(2, 2, 1, 1);13var wpt = require('wpt');14var point = wpt.getPreviousEquivalentPoint(2, 2, 1, 2);15var wpt = require('wpt');16var point = wpt.getPreviousEquivalentPoint(2, 2, 1, 3);

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1var wpt = require('wpt');2var previousPoint = wpt.getPreviousEquivalentPoint(10, 20, 1);3console.log(previousPoint);4var wpt = require('wpt');5var nextPoint = wpt.getNextEquivalentPoint(10, 20, 1);6console.log(nextPoint);7var wpt = require('wpt');8var point = wpt.getPointOnLine(10, 20, 30, 40, 1);9console.log(point);10var wpt = require('wpt');11var point = wpt.getPointOnCurve(10, 20, 30, 40, 50, 60, 70, 80, 1);12console.log(point);13var wpt = require('wpt');14var point = wpt.getPointOnBezierCurve(10, 20, 30, 40, 50, 60, 1);15console.log(point);16var wpt = require('wpt');17var point = wpt.getPointOnQuadraticCurve(10, 20, 30, 40, 50, 60, 1);18console.log(point);19var wpt = require('wpt');20var point = wpt.getPointOnSpline(10, 20, 30, 40, 50, 60, 70, 80, 1);21console.log(point);

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1var wpt = new WayPoint(1, 2);2var wpt2 = new WayPoint(2, 3);3wpt.getPreviousEquivalentPoint(wpt2);4### getPreviousEquivalentPoint(wpt)5### getPreviousPoint()6### getPreviousPointAtDistance(distance)7### getPreviousPointAtDistanceFromEnd(distance)8### getPreviousPointAtTime(time)9### getPreviousPointAtTimeFromEnd(time)10### getPreviousPointAtX(x)11### getPreviousPointAtY(y)12### getPreviousPointInDirection(direction)13### getPreviousPointInDirectionFromEnd(direction)14### getPreviousPointInDirectionFromTime(direction, time)15### getPreviousPointInDirectionFromTimeFromEnd(direction, time)16### getPreviousPointInDirectionFromX(direction, x)17### getPreviousPointInDirectionFromY(direction, y)18### getPreviousPointInDirectionFromXFromEnd(direction, x)19### getPreviousPointInDirectionFromYFromEnd(direction, y)

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