85 lines
2.9 KiB
JavaScript
85 lines
2.9 KiB
JavaScript
define([
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"jquery",
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"underscore",
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"caret",
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"crel",
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"classes/Extension"
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], function($, _, caret, crel, Extension) {
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var buttonFocusMode = new Extension("buttonFocusMode", 'Button "Focus Mode"', true, true);
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buttonFocusMode.settingsBlock = "When typing, scrolls automatically the editor to always have the caret centered verticaly.";
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var aceEditor;
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buttonFocusMode.onAceCreated = function(aceEditorParam) {
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aceEditor = aceEditorParam;
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};
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var isMouseActive = false;
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function doFocusMode() {
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if(aceEditor) {
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if(isMouseActive === true) {
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return;
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}
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var positionInDocument = aceEditor.selection.getCursor();
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var positionInScreen = aceEditor.session.documentToScreenPosition(positionInDocument.row, positionInDocument.column);
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aceEditor.session.setScrollTop((positionInScreen.row + 0.5) * aceEditor.renderer.lineHeight - aceEditor.renderer.$size.scrollerHeight / 2);
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}
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}
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var $editorElt;
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//var $positionHelper = $('<span>').css('display', 'inline-block');
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var coef = 0.2;
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function doFocus() {
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setTimeout(function() {
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if(!($editorElt && $editorElt[0].focused)) {
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return;
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}
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/*
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var range = window.getSelection().getRangeAt(0);
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range.insertNode($positionHelper[0]);
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var parentNode = $positionHelper[0].parentNode;
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*/
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var editorHeight = $editorElt.height();
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var cursorMinY = coef*editorHeight;
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var cursorMaxY = (1-coef)*editorHeight;
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var cursorY = $editorElt.caret('offset').top - $editorElt.offset().top;
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console.log($editorElt.caret('offset'));
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//$positionHelper.detach();
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//parentNode.normalize();
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/*
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if(cursorY < cursorMinY) {
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$editorElt.scrollTop($editorElt.scrollTop() - cursorMinY + cursorY);
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}
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else if(cursorY > cursorMaxY) {
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$editorElt.scrollTop($editorElt.scrollTop() + cursorY - cursorMaxY);
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}
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*/
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}, 0);
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}
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buttonFocusMode.onLayoutResize = doFocus;
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buttonFocusMode.onReady = function() {
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if(aceEditor) {
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aceEditor.getSession().selection.on('changeCursor', doFocusMode);
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aceEditor.container.addEventListener('keydown', function() {
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isMouseActive = false;
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}, true);
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aceEditor.container.addEventListener('mousedown', function() {
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isMouseActive = true;
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}, true);
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return;
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}
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$editorElt = $('#wmd-input').on('keydown', function(event) {
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if(event.altKey || event.ctrlKey || event.shiftKey || event.metaKey) {
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return;
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}
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doFocus();
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});
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};
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return buttonFocusMode;
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});
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