moved emberjs to gui folder

gui/app/utils/toc.js

@@ -0,0 +1,274 @@
+// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
+//
+// This software (Documize Community Edition) is licensed under
+// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
+//
+// You can operate outside the AGPL restrictions by purchasing
+// Documize Enterprise Edition and obtaining a commercial license
+// by contacting <sales@documize.com>.
+//
+// https://documize.com
+
+function getState(toc, page) {
+	let state = {
+		tocTools: {
+			upTarget: "",
+			downTarget: "",
+			indentIncrement: 0,
+			allowIndent: false,
+			allowOutdent: false
+		},
+		actionablePage: false,
+		upDisabled: true,
+		downDisabled: true,
+		indentDisabled: true,
+		outdentDisabled: true,
+	};
+
+	if (is.undefined(page)) {
+		return state;
+	}
+
+	var index = _.indexOf(toc, page, false);
+
+	if (index === -1) {
+		return state;
+	}
+
+	var upPage = toc[index - 1];
+	var downPage = toc[index + 1];
+
+	if (_.isUndefined(upPage)) {
+		state.tocTools.upTarget = '';
+	}
+
+	if (_.isUndefined(downPage)) {
+		state.tocTools.downTarget = '';
+	}
+
+	// can we go up?
+	// can we indent?
+	if (!_.isUndefined(upPage)) {
+		// can only go up if someone is same or higher level?
+		var index2 = _.indexOf(toc, upPage, false);
+
+		if (index2 !== -1) {
+			// up
+			for (var i = index2; i >= 0; i--) {
+				if (page.get('level') > toc[i].get('level')) {
+					break;
+				}
+
+				if (page.get('level') === toc[i].get('level')) {
+					state.tocTools.upTarget = toc[i].id;
+					break;
+				}
+			}
+
+			// indent?
+			state.tocTools.allowIndent = upPage.get('level') >= page.get('level');
+			state.tocTools.indentIncrement = upPage.get('level') - page.get('level');
+
+			if (state.tocTools.indentIncrement === 0) {
+				state.tocTools.indentIncrement = 1;
+			}
+		}
+	}
+
+	// can we go down?
+	if (!_.isUndefined(downPage)) {
+		// can only go down if someone below is at our level or higher
+		var index3 = _.indexOf(toc, downPage, false);
+
+		if (index3 !== -1) {
+			for (var i3 = index3; i3 < toc.length; i3++) {
+				if (toc[i3].get('level') < page.get('level')) {
+					break;
+				}
+
+				if (page.get('level') === toc[i3].get('level')) {
+					state.tocTools.downTarget = toc[i3].get('id');
+					break;
+				}
+			}
+		}
+
+		if (page.get('level') > downPage.get('level')) {
+			state.tocTools.downTarget = '';
+		}
+	}
+
+	// can we outdent?
+	state.tocTools.allowOutdent = page.get('level') > 1;
+
+	state.upDisabled = state.tocTools.upTarget === '';
+	state.downDisabled = state.tocTools.downTarget === '';
+	state.indentDisabled = !state.tocTools.allowIndent;
+	state.outdentDisabled = !state.tocTools.allowOutdent;
+
+	state.actionablePage = is.not.empty(state.tocTools.upTarget) ||
+		is.not.empty(state.tocTools.downTarget) ||
+		state.tocTools.allowIndent || state.tocTools.allowOutdent;
+
+	return state;
+}
+
+// move up page and any associated kids
+function moveUp(state, pages, current) {
+	var page1 = _.findWhere(pages, { id: state.tocTools.upTarget });
+	var page2 = null;
+	var pendingChanges = [];
+
+	if (is.undefined(current) || is.undefined(page1)) {
+		return pendingChanges;
+	}
+
+	var index1 = _.indexOf(pages, page1, false);
+
+	if (index1 !== -1) {
+		page2 = pages[index1 - 1];
+	}
+
+	var sequence1 = page1.get('sequence');
+	var sequence2 = is.not.null(page2) && is.not.undefined(page2) ? page2.get('sequence') : 0;
+	var index = _.indexOf(pages, current, false);
+
+	if (index !== -1) {
+		var sequence = (sequence1 + sequence2) / 2;
+
+		pendingChanges.push({
+			pageId: current.get('id'),
+			sequence: sequence
+		});
+
+		for (var i = index + 1; i < pages.length; i++) {
+			if (pages[i].get('level') <= current.get('level')) {
+				break;
+			}
+
+			sequence = (sequence + page1.get('sequence')) / 2;
+
+			pendingChanges.push({
+				pageId: pages[i].get('id'),
+				sequence: sequence
+			});
+		}
+	}
+
+	return pendingChanges;
+}
+
+// move down page and any associated kids
+function moveDown(state, pages, current) {
+	var pageIndex = _.indexOf(pages, current, false);
+	var downTarget = _.findWhere(pages, { id: state.tocTools.downTarget });
+	var downTargetIndex = _.indexOf(pages, downTarget, false);
+	var pendingChanges = [];
+
+	if (pageIndex === -1 || downTargetIndex === -1) {
+		return pendingChanges;
+	}
+
+	var startingSequence = 0;
+	var upperSequence = 0;
+	var cutOff = _.rest(pages, downTargetIndex);
+	var siblings = _.reject(cutOff, function (p) {
+		return p.get('level') !== current.get('level') || p.get('id') === current.get('id') || p.get('id') === downTarget.get('id');
+	});
+
+	if (siblings.length > 0) {
+		var aboveThisGuy = siblings[0];
+		var belowThisGuy = pages[_.indexOf(pages, aboveThisGuy, false) - 1];
+
+		if (is.not.null(belowThisGuy) && belowThisGuy.get('level') > current.get('level')) {
+			startingSequence = (aboveThisGuy.get('sequence') + belowThisGuy.get('sequence')) / 2;
+			upperSequence = aboveThisGuy.get('sequence');
+		} else {
+			var otherGuy = pages[downTargetIndex + 1];
+
+			startingSequence = (otherGuy.get('sequence') + downTarget.get('sequence')) / 2;
+			upperSequence = otherGuy.get('sequence');
+		}
+	} else {
+		// startingSequence = downTarget.sequence * 2;
+		startingSequence = cutOff[cutOff.length - 1].get('sequence') * 2;
+		upperSequence = startingSequence * 2;
+	}
+
+	pendingChanges.push({
+		pageId: current.get('id'),
+		sequence: startingSequence
+	});
+
+	var sequence = (startingSequence + upperSequence) / 2;
+
+	for (var i = pageIndex + 1; i < pages.length; i++) {
+		if (pages[i].get('level') <= current.get('level')) {
+			break;
+		}
+
+		var sequence2 = (sequence + upperSequence) / 2;
+
+		pendingChanges.push({
+			pageId: pages[i].get('id'),
+			sequence: sequence2
+		});
+	}
+
+	return pendingChanges;
+}
+
+// indent page and any associated kisds
+function indent(state, pages, current) {
+	var pageIndex = _.indexOf(pages, current, false);
+	var pendingChanges = [];
+
+	pendingChanges.push({
+		pageId: current.get('id'),
+		level: current.get('level') + state.tocTools.indentIncrement
+	});
+
+	for (var i = pageIndex + 1; i < pages.length; i++) {
+		if (pages[i].get('level') <= current.get('level')) {
+			break;
+		}
+
+		pendingChanges.push({
+			pageId: pages[i].get('id'),
+			level: pages[i].get('level') + state.tocTools.indentIncrement
+		});
+	}
+
+	return pendingChanges;
+}
+
+function outdent(state, pages, current) {
+	var pageIndex = _.indexOf(pages, current, false);
+	var pendingChanges = [];
+
+	pendingChanges.push({
+		pageId: current.get('id'),
+		level: current.get('level') - 1
+	});
+
+	for (var i = pageIndex + 1; i < pages.length; i++) {
+		if (pages[i].get('level') <= current.get('level')) {
+			break;
+		}
+
+		pendingChanges.push({
+			pageId: pages[i].get('id'),
+			level: pages[i].get('level') - 1
+		});
+	}
+
+	return pendingChanges;
+}
+
+export default {
+	getState,
+	moveUp,
+	moveDown,
+	indent,
+	outdent
+};