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moved keyhandler to the new dw_editor object
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@splitbrain
splitbrain committed Aug 19, 2011
1 parent 0a24597 commit bedfa6a
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Showing 2 changed files with 91 additions and 88 deletions.
88 changes: 0 additions & 88 deletions lib/scripts/edit.js
View file
Expand Up @@ -155,86 +155,6 @@ function addBtnActionSignature(btn, props, edid) {
return false;
}

/**
* Make intended formattings easier to handle
*
* Listens to all key inputs and handle indentions
* of lists and code blocks
*
* Currently handles space, backspce and enter presses
*
* @author Andreas Gohr <andi@splitbrain.org>
* @fixme handle tabs
*/
function keyHandler(e){
if(e.keyCode != 13 &&
e.keyCode != 8 &&
e.keyCode != 32) return;
var field = e.target;
var selection = getSelection(field);
if(selection.getLength()) return; //there was text selected, keep standard behavior
var search = "\n"+field.value.substr(0,selection.start);
var linestart = Math.max(search.lastIndexOf("\n"),
search.lastIndexOf("\r")); //IE workaround
search = search.substr(linestart);


if(e.keyCode == 13){ // Enter
// keep current indention for lists and code
var match = search.match(/(\n +([\*-] ?)?)/);
if(match){
var scroll = field.scrollHeight;
var match2 = search.match(/^\n +[\*-]\s*$/);
// Cancel list if the last item is empty (i. e. two times enter)
if (match2 && field.value.substr(selection.start).match(/^($|\r?\n)/)) {
field.value = field.value.substr(0, linestart) + "\n" +
field.value.substr(selection.start);
selection.start = linestart + 1;
selection.end = linestart + 1;
setSelection(selection);
} else {
insertAtCarret(field.id,match[1]);
}
field.scrollTop += (field.scrollHeight - scroll);
e.preventDefault(); // prevent enter key
return false;
}
}else if(e.keyCode == 8){ // Backspace
// unindent lists
var match = search.match(/(\n +)([*-] ?)$/);
if(match){
var spaces = match[1].length-1;

if(spaces > 3){ // unindent one level
field.value = field.value.substr(0,linestart)+
field.value.substr(linestart+2);
selection.start = selection.start - 2;
selection.end = selection.start;
}else{ // delete list point
field.value = field.value.substr(0,linestart)+
field.value.substr(selection.start);
selection.start = linestart;
selection.end = linestart;
}
setSelection(selection);
e.preventDefault(); // prevent backspace
return false;
}
}else if(e.keyCode == 32){ // Space
// intend list item
var match = search.match(/(\n +)([*-] )$/);
if(match){
field.value = field.value.substr(0,linestart)+' '+
field.value.substr(linestart);
selection.start = selection.start + 2;
selection.end = selection.start;
setSelection(selection);
e.preventDefault(); // prevent space
return false;
}
}
}

/**
* Determine the current section level while editing
*
Expand Down Expand Up @@ -303,14 +223,6 @@ addInitEvent(function () {
if (edit_text.length > 0) {
if(edit_text.attr('readOnly')) return;

// in Firefox, keypress doesn't send the correct keycodes,
// in Opera, the default of keydown can't be prevented
if (is_opera) {
edit_text.keypress(keyHandler);
} else {
edit_text.keydown(keyHandler);
}

// set focus and place cursor at the start
var sel = getSelection(edit_text.get(0));
sel.start = 0;
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91 changes: 91 additions & 0 deletions lib/scripts/editor.js
View file
Expand Up @@ -18,6 +18,17 @@ var dw_editor = {
if(!$editor.length) return;

dw_editor.initSizeCtl('#size__ctl',$editor);

if($editor.attr('readOnly')) return;

// in Firefox, keypress doesn't send the correct keycodes,
// in Opera, the default of keydown can't be prevented
if (jQuery.browser.opera) {
$editor.keypress(dw_editor.keyHandler);
} else {
$editor.keydown(dw_editor.keyHandler);
}

},

/**
Expand Down Expand Up @@ -108,6 +119,86 @@ var dw_editor = {
var nxtSib = textarea.nextSibling;
parNod.removeChild(textarea);
parNod.insertBefore(textarea, nxtSib);
},

/**
* Make intended formattings easier to handle
*
* Listens to all key inputs and handle indentions
* of lists and code blocks
*
* Currently handles space, backspce and enter presses
*
* @author Andreas Gohr <andi@splitbrain.org>
* @fixme handle tabs
* @param event e - the key press event object
*/
keyHandler: function(e){
if(e.keyCode != 13 &&
e.keyCode != 8 &&
e.keyCode != 32) return;
var field = e.target;
var selection = getSelection(field);
if(selection.getLength()) return; //there was text selected, keep standard behavior
var search = "\n"+field.value.substr(0,selection.start);
var linestart = Math.max(search.lastIndexOf("\n"),
search.lastIndexOf("\r")); //IE workaround
search = search.substr(linestart);

if(e.keyCode == 13){ // Enter
// keep current indention for lists and code
var match = search.match(/(\n +([\*-] ?)?)/);
if(match){
var scroll = field.scrollHeight;
var match2 = search.match(/^\n +[\*-]\s*$/);
// Cancel list if the last item is empty (i. e. two times enter)
if (match2 && field.value.substr(selection.start).match(/^($|\r?\n)/)) {
field.value = field.value.substr(0, linestart) + "\n" +
field.value.substr(selection.start);
selection.start = linestart + 1;
selection.end = linestart + 1;
setSelection(selection);
} else {
insertAtCarret(field.id,match[1]);
}
field.scrollTop += (field.scrollHeight - scroll);
e.preventDefault(); // prevent enter key
return false;
}
}else if(e.keyCode == 8){ // Backspace
// unindent lists
var match = search.match(/(\n +)([*-] ?)$/);
if(match){
var spaces = match[1].length-1;

if(spaces > 3){ // unindent one level
field.value = field.value.substr(0,linestart)+
field.value.substr(linestart+2);
selection.start = selection.start - 2;
selection.end = selection.start;
}else{ // delete list point
field.value = field.value.substr(0,linestart)+
field.value.substr(selection.start);
selection.start = linestart;
selection.end = linestart;
}
setSelection(selection);
e.preventDefault(); // prevent backspace
return false;
}
}else if(e.keyCode == 32){ // Space
// intend list item
var match = search.match(/(\n +)([*-] )$/);
if(match){
field.value = field.value.substr(0,linestart)+' '+
field.value.substr(linestart);
selection.start = selection.start + 2;
selection.end = selection.start;
setSelection(selection);
e.preventDefault(); // prevent space
return false;
}
}
}


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