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/**
* Quirks.js
*
* Copyright, Moxiecode Systems AB
* Released under LGPL License.
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/**
* This class includes fixes for various browser quirks.
*
* @class tinymce.tableplugin.Quirks
* @private
*/
define("tinymce/tableplugin/Quirks", [
"tinymce/util/VK",
"tinymce/Env",
"tinymce/util/Tools"
], function(VK, Env, Tools) {
var each = Tools.each;
function getSpanVal(td, name) {
return parseInt(td.getAttribute(name) || 1, 10);
}
return function(editor) {
/**
* Fixed caret movement around tables on WebKit.
*/
function moveWebKitSelection() {
function eventHandler(e) {
var key = e.keyCode;
function handle(upBool, sourceNode) {
var siblingDirection = upBool ? 'previousSibling' : 'nextSibling';
var currentRow = editor.dom.getParent(sourceNode, 'tr');
var siblingRow = currentRow[siblingDirection];
if (siblingRow) {
moveCursorToRow(editor, sourceNode, siblingRow, upBool);
e.preventDefault();
return true;
} else {
var tableNode = editor.dom.getParent(currentRow, 'table');
var middleNode = currentRow.parentNode;
var parentNodeName = middleNode.nodeName.toLowerCase();
if (parentNodeName === 'tbody' || parentNodeName === (upBool ? 'tfoot' : 'thead')) {
var targetParent = getTargetParent(upBool, tableNode, middleNode, 'tbody');
if (targetParent !== null) {
return moveToRowInTarget(upBool, targetParent, sourceNode);
}
}
return escapeTable(upBool, currentRow, siblingDirection, tableNode);
}
}
function getTargetParent(upBool, topNode, secondNode, nodeName) {
var tbodies = editor.dom.select('>' + nodeName, topNode);
var position = tbodies.indexOf(secondNode);
if (upBool && position === 0 || !upBool && position === tbodies.length - 1) {
return getFirstHeadOrFoot(upBool, topNode);
} else if (position === -1) {
var topOrBottom = secondNode.tagName.toLowerCase() === 'thead' ? 0 : tbodies.length - 1;
return tbodies[topOrBottom];
} else {
return tbodies[position + (upBool ? -1 : 1)];
}
}
function getFirstHeadOrFoot(upBool, parent) {
var tagName = upBool ? 'thead' : 'tfoot';
var headOrFoot = editor.dom.select('>' + tagName, parent);
return headOrFoot.length !== 0 ? headOrFoot[0] : null;
}
function moveToRowInTarget(upBool, targetParent, sourceNode) {
var targetRow = getChildForDirection(targetParent, upBool);
if (targetRow) {
moveCursorToRow(editor, sourceNode, targetRow, upBool);
}
e.preventDefault();
return true;
}
function escapeTable(upBool, currentRow, siblingDirection, table) {
var tableSibling = table[siblingDirection];
if (tableSibling) {
moveCursorToStartOfElement(tableSibling);
return true;
} else {
var parentCell = editor.dom.getParent(table, 'td,th');
if (parentCell) {
return handle(upBool, parentCell, e);
} else {
var backUpSibling = getChildForDirection(currentRow, !upBool);
moveCursorToStartOfElement(backUpSibling);
e.preventDefault();
return false;
}
}
}
function getChildForDirection(parent, up) {
var child = parent && parent[up ? 'lastChild' : 'firstChild'];
// BR is not a valid table child to return in this case we return the table cell
return child && child.nodeName === 'BR' ? editor.dom.getParent(child, 'td,th') : child;
}
function moveCursorToStartOfElement(n) {
editor.selection.setCursorLocation(n, 0);
}
function isVerticalMovement() {
return key == VK.UP || key == VK.DOWN;
}
function isInTable(editor) {
var node = editor.selection.getNode();
var currentRow = editor.dom.getParent(node, 'tr');
return currentRow !== null;
}
function columnIndex(column) {
var colIndex = 0;
var c = column;
while (c.previousSibling) {
c = c.previousSibling;
colIndex = colIndex + getSpanVal(c, "colspan");
}
return colIndex;
}
function findColumn(rowElement, columnIndex) {
var c = 0, r = 0;
each(rowElement.children, function(cell, i) {
c = c + getSpanVal(cell, "colspan");
r = i;
if (c > columnIndex) {
return false;
}
});
return r;
}
function moveCursorToRow(ed, node, row, upBool) {
var srcColumnIndex = columnIndex(editor.dom.getParent(node, 'td,th'));
var tgtColumnIndex = findColumn(row, srcColumnIndex);
var tgtNode = row.childNodes[tgtColumnIndex];
var rowCellTarget = getChildForDirection(tgtNode, upBool);
moveCursorToStartOfElement(rowCellTarget || tgtNode);
}
function shouldFixCaret(preBrowserNode) {
var newNode = editor.selection.getNode();
var newParent = editor.dom.getParent(newNode, 'td,th');
var oldParent = editor.dom.getParent(preBrowserNode, 'td,th');
return newParent && newParent !== oldParent && checkSameParentTable(newParent, oldParent);
}
function checkSameParentTable(nodeOne, NodeTwo) {
return editor.dom.getParent(nodeOne, 'TABLE') === editor.dom.getParent(NodeTwo, 'TABLE');
}
if (isVerticalMovement() && isInTable(editor)) {
var preBrowserNode = editor.selection.getNode();
setTimeout(function() {
if (shouldFixCaret(preBrowserNode)) {
handle(!e.shiftKey && key === VK.UP, preBrowserNode, e);
}
}, 0);
}
}
editor.on('KeyDown', function(e) {
eventHandler(e);
});
}
function fixBeforeTableCaretBug() {
// Checks if the selection/caret is at the start of the specified block element
function isAtStart(rng, par) {
var doc = par.ownerDocument, rng2 = doc.createRange(), elm;
rng2.setStartBefore(par);
rng2.setEnd(rng.endContainer, rng.endOffset);
elm = doc.createElement('body');
elm.appendChild(rng2.cloneContents());
// Check for text characters of other elements that should be treated as content
return elm.innerHTML.replace(/<(br|img|object|embed|input|textarea)[^>]*>/gi, '-').replace(/<[^>]+>/g, '').length === 0;
}
// Fixes an bug where it's impossible to place the caret before a table in Gecko
// this fix solves it by detecting when the caret is at the beginning of such a table
// and then manually moves the caret infront of the table
editor.on('KeyDown', function(e) {
var rng, table, dom = editor.dom;
// On gecko it's not possible to place the caret before a table
if (e.keyCode == 37 || e.keyCode == 38) {
rng = editor.selection.getRng();
table = dom.getParent(rng.startContainer, 'table');
if (table && editor.getBody().firstChild == table) {
if (isAtStart(rng, table)) {
rng = dom.createRng();
rng.setStartBefore(table);
rng.setEndBefore(table);
editor.selection.setRng(rng);
e.preventDefault();
}
}
}
});
}
// Fixes an issue on Gecko where it's impossible to place the caret behind a table
// This fix will force a paragraph element after the table but only when the forced_root_block setting is enabled
function fixTableCaretPos() {
editor.on('KeyDown SetContent VisualAid', function() {
var last;
// Skip empty text nodes from the end
for (last = editor.getBody().lastChild; last; last = last.previousSibling) {
if (last.nodeType == 3) {
if (last.nodeValue.length > 0) {
break;
}
} else if (last.nodeType == 1 && (last.tagName == 'BR' || !last.getAttribute('data-mce-bogus'))) {
break;
}
}
if (last && last.nodeName == 'TABLE') {
if (editor.settings.forced_root_block) {
editor.dom.add(
editor.getBody(),
editor.settings.forced_root_block,
editor.settings.forced_root_block_attrs,
Env.ie && Env.ie < 11 ? ' ' : '<br data-mce-bogus="1" />'
);
} else {
editor.dom.add(editor.getBody(), 'br', {'data-mce-bogus': '1'});
}
}
});
editor.on('PreProcess', function(o) {
var last = o.node.lastChild;
if (last && (last.nodeName == "BR" || (last.childNodes.length == 1 &&
(last.firstChild.nodeName == 'BR' || last.firstChild.nodeValue == '\u00a0'))) &&
last.previousSibling && last.previousSibling.nodeName == "TABLE") {
editor.dom.remove(last);
}
});
}
// this nasty hack is here to work around some WebKit selection bugs.
function fixTableCellSelection() {
function tableCellSelected(ed, rng, n, currentCell) {
// The decision of when a table cell is selected is somewhat involved. The fact that this code is
// required is actually a pointer to the root cause of this bug. A cell is selected when the start
// and end offsets are 0, the start container is a text, and the selection node is either a TR (most cases)
// or the parent of the table (in the case of the selection containing the last cell of a table).
var TEXT_NODE = 3, table = ed.dom.getParent(rng.startContainer, 'TABLE');
var tableParent, allOfCellSelected, tableCellSelection;
if (table) {
tableParent = table.parentNode;
}
allOfCellSelected = rng.startContainer.nodeType == TEXT_NODE &&
rng.startOffset === 0 &&
rng.endOffset === 0 &&
currentCell &&
(n.nodeName == "TR" || n == tableParent);
tableCellSelection = (n.nodeName == "TD" || n.nodeName == "TH") && !currentCell;
return allOfCellSelected || tableCellSelection;
}
function fixSelection() {
var rng = editor.selection.getRng();
var n = editor.selection.getNode();
var currentCell = editor.dom.getParent(rng.startContainer, 'TD,TH');
if (!tableCellSelected(editor, rng, n, currentCell)) {
return;
}
if (!currentCell) {
currentCell = n;
}
// Get the very last node inside the table cell
var end = currentCell.lastChild;
while (end.lastChild) {
end = end.lastChild;
}
// Select the entire table cell. Nothing outside of the table cell should be selected.
if (end.nodeType == 3) {
rng.setEnd(end, end.data.length);
editor.selection.setRng(rng);
}
}
editor.on('KeyDown', function() {
fixSelection();
});
editor.on('MouseDown', function(e) {
if (e.button != 2) {
fixSelection();
}
});
}
/**
* Delete table if all cells are selected.
*/
function deleteTable() {
editor.on('keydown', function(e) {
if ((e.keyCode == VK.DELETE || e.keyCode == VK.BACKSPACE) && !e.isDefaultPrevented()) {
var table = editor.dom.getParent(editor.selection.getStart(), 'table');
if (table) {
var cells = editor.dom.select('td,th', table), i = cells.length;
while (i--) {
if (!editor.dom.hasClass(cells[i], 'mce-item-selected')) {
return;
}
}
e.preventDefault();
editor.execCommand('mceTableDelete');
}
}
});
}
deleteTable();
if (Env.webkit) {
moveWebKitSelection();
fixTableCellSelection();
}
if (Env.gecko) {
fixBeforeTableCaretBug();
fixTableCaretPos();
}
if (Env.ie > 10) {
fixBeforeTableCaretBug();
fixTableCaretPos();
}
};
});