BookStack/resources/assets/js/directives.js
2016-07-03 10:47:20 +01:00

661 lines
25 KiB
JavaScript

"use strict";
var DropZone = require('dropzone');
var markdown = require('marked');
var toggleSwitchTemplate = require('./components/toggle-switch.html');
var imagePickerTemplate = require('./components/image-picker.html');
var dropZoneTemplate = require('./components/drop-zone.html');
module.exports = function (ngApp, events) {
/**
* Toggle Switches
* Has basic on/off functionality.
* Use string values of 'true' & 'false' to dictate the current state.
*/
ngApp.directive('toggleSwitch', function () {
return {
restrict: 'A',
template: toggleSwitchTemplate,
scope: true,
link: function (scope, element, attrs) {
scope.name = attrs.name;
scope.value = attrs.value;
scope.isActive = scope.value == true && scope.value != 'false';
scope.value = (scope.value == true && scope.value != 'false') ? 'true' : 'false';
scope.switch = function () {
scope.isActive = !scope.isActive;
scope.value = scope.isActive ? 'true' : 'false';
}
}
};
});
/**
* Image Picker
* Is a simple front-end interface that connects to an ImageManager if present.
*/
ngApp.directive('imagePicker', ['$http', 'imageManagerService', function ($http, imageManagerService) {
return {
restrict: 'E',
template: imagePickerTemplate,
scope: {
name: '@',
resizeHeight: '@',
resizeWidth: '@',
resizeCrop: '@',
showRemove: '=',
currentImage: '@',
currentId: '@',
defaultImage: '@',
imageClass: '@'
},
link: function (scope, element, attrs) {
var usingIds = typeof scope.currentId !== 'undefined' || scope.currentId === 'false';
scope.image = scope.currentImage;
scope.value = scope.currentImage || '';
if (usingIds) scope.value = scope.currentId;
function setImage(imageModel, imageUrl) {
scope.image = imageUrl;
scope.value = usingIds ? imageModel.id : imageUrl;
}
scope.reset = function () {
setImage({id: 0}, scope.defaultImage);
};
scope.remove = function () {
scope.image = 'none';
scope.value = 'none';
};
scope.showImageManager = function () {
imageManagerService.show((image) => {
scope.updateImageFromModel(image);
});
};
scope.updateImageFromModel = function (model) {
var isResized = scope.resizeWidth && scope.resizeHeight;
if (!isResized) {
scope.$apply(() => {
setImage(model, model.url);
});
return;
}
var cropped = scope.resizeCrop ? 'true' : 'false';
var requestString = '/images/thumb/' + model.id + '/' + scope.resizeWidth + '/' + scope.resizeHeight + '/' + cropped;
$http.get(requestString).then((response) => {
setImage(model, response.data.url);
});
};
}
};
}]);
/**
* DropZone
* Used for uploading images
*/
ngApp.directive('dropZone', [function () {
return {
restrict: 'E',
template: dropZoneTemplate,
scope: {
uploadUrl: '@',
eventSuccess: '=',
eventError: '=',
uploadedTo: '@'
},
link: function (scope, element, attrs) {
var dropZone = new DropZone(element[0].querySelector('.dropzone-container'), {
url: scope.uploadUrl,
init: function () {
var dz = this;
dz.on('sending', function (file, xhr, data) {
var token = window.document.querySelector('meta[name=token]').getAttribute('content');
data.append('_token', token);
var uploadedTo = typeof scope.uploadedTo === 'undefined' ? 0 : scope.uploadedTo;
data.append('uploaded_to', uploadedTo);
});
if (typeof scope.eventSuccess !== 'undefined') dz.on('success', scope.eventSuccess);
dz.on('success', function (file, data) {
$(file.previewElement).fadeOut(400, function () {
dz.removeFile(file);
});
});
if (typeof scope.eventError !== 'undefined') dz.on('error', scope.eventError);
dz.on('error', function (file, errorMessage, xhr) {
console.log(errorMessage);
console.log(xhr);
function setMessage(message) {
$(file.previewElement).find('[data-dz-errormessage]').text(message);
}
if (xhr.status === 413) setMessage('The server does not allow uploads of this size. Please try a smaller file.');
if (errorMessage.file) setMessage(errorMessage.file[0]);
});
}
});
}
};
}]);
/**
* Dropdown
* Provides some simple logic to create small dropdown menus
*/
ngApp.directive('dropdown', [function () {
return {
restrict: 'A',
link: function (scope, element, attrs) {
var menu = element.find('ul');
element.find('[dropdown-toggle]').on('click', function () {
menu.show().addClass('anim menuIn');
element.mouseleave(function () {
menu.hide();
menu.removeClass('anim menuIn');
});
});
}
};
}]);
/**
* TinyMCE
* An angular wrapper around the tinyMCE editor.
*/
ngApp.directive('tinymce', ['$timeout', function ($timeout) {
return {
restrict: 'A',
scope: {
tinymce: '=',
mceModel: '=',
mceChange: '='
},
link: function (scope, element, attrs) {
function tinyMceSetup(editor) {
editor.on('ExecCommand change NodeChange ObjectResized', (e) => {
var content = editor.getContent();
$timeout(() => {
scope.mceModel = content;
});
scope.mceChange(content);
});
editor.on('keydown', (event) => {
scope.$emit('editor-keydown', event);
});
editor.on('init', (e) => {
scope.mceModel = editor.getContent();
});
scope.$on('html-update', (event, value) => {
editor.setContent(value);
editor.selection.select(editor.getBody(), true);
editor.selection.collapse(false);
scope.mceModel = editor.getContent();
});
}
scope.tinymce.extraSetups.push(tinyMceSetup);
// Custom tinyMCE plugins
tinymce.PluginManager.add('customhr', function (editor) {
editor.addCommand('InsertHorizontalRule', function () {
var hrElem = document.createElement('hr');
var cNode = editor.selection.getNode();
var parentNode = cNode.parentNode;
parentNode.insertBefore(hrElem, cNode);
});
editor.addButton('hr', {
icon: 'hr',
tooltip: 'Horizontal line',
cmd: 'InsertHorizontalRule'
});
editor.addMenuItem('hr', {
icon: 'hr',
text: 'Horizontal line',
cmd: 'InsertHorizontalRule',
context: 'insert'
});
});
tinymce.init(scope.tinymce);
}
}
}]);
/**
* Markdown input
* Handles the logic for just the editor input field.
*/
ngApp.directive('markdownInput', ['$timeout', function ($timeout) {
return {
restrict: 'A',
scope: {
mdModel: '=',
mdChange: '='
},
link: function (scope, element, attrs) {
// Set initial model content
var content = element.val();
scope.mdModel = content;
scope.mdChange(markdown(content));
element.on('change input', (e) => {
content = element.val();
$timeout(() => {
scope.mdModel = content;
scope.mdChange(markdown(content));
});
});
scope.$on('markdown-update', (event, value) => {
element.val(value);
scope.mdModel = value;
scope.mdChange(markdown(value));
});
}
}
}]);
/**
* Markdown Editor
* Handles all functionality of the markdown editor.
*/
ngApp.directive('markdownEditor', ['$timeout', function ($timeout) {
return {
restrict: 'A',
link: function (scope, element, attrs) {
// Elements
const input = element.find('textarea[markdown-input]');
const display = element.find('.markdown-display').first();
const insertImage = element.find('button[data-action="insertImage"]');
let currentCaretPos = 0;
input.blur(event => {
currentCaretPos = input[0].selectionStart;
});
// Scroll sync
let inputScrollHeight,
inputHeight,
displayScrollHeight,
displayHeight;
function setScrollHeights() {
inputScrollHeight = input[0].scrollHeight;
inputHeight = input.height();
displayScrollHeight = display[0].scrollHeight;
displayHeight = display.height();
}
setTimeout(() => {
setScrollHeights();
}, 200);
window.addEventListener('resize', setScrollHeights);
let scrollDebounceTime = 800;
let lastScroll = 0;
input.on('scroll', event => {
let now = Date.now();
if (now - lastScroll > scrollDebounceTime) {
setScrollHeights()
}
let scrollPercent = (input.scrollTop() / (inputScrollHeight - inputHeight));
let displayScrollY = (displayScrollHeight - displayHeight) * scrollPercent;
display.scrollTop(displayScrollY);
lastScroll = now;
});
// Editor key-presses
input.keydown(event => {
// Insert image shortcut
if (event.which === 73 && event.ctrlKey && event.shiftKey) {
event.preventDefault();
var caretPos = input[0].selectionStart;
var currentContent = input.val();
var mdImageText = "![](http://)";
input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
input.focus();
input[0].selectionStart = caretPos + ("![](".length);
input[0].selectionEnd = caretPos + ('![](http://'.length);
return;
}
// Pass key presses to controller via event
scope.$emit('editor-keydown', event);
});
// Insert image from image manager
insertImage.click(event => {
window.ImageManager.showExternal(image => {
var caretPos = currentCaretPos;
var currentContent = input.val();
var mdImageText = "![" + image.name + "](" + image.url + ")";
input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
input.change();
});
});
}
}
}]);
/**
* Page Editor Toolbox
* Controls all functionality for the sliding toolbox
* on the page edit view.
*/
ngApp.directive('toolbox', [function () {
return {
restrict: 'A',
link: function (scope, elem, attrs) {
// Get common elements
const $buttons = elem.find('[tab-button]');
const $content = elem.find('[tab-content]');
const $toggle = elem.find('[toolbox-toggle]');
// Handle toolbox toggle click
$toggle.click((e) => {
elem.toggleClass('open');
});
// Set an active tab/content by name
function setActive(tabName, openToolbox) {
$buttons.removeClass('active');
$content.hide();
$buttons.filter(`[tab-button="${tabName}"]`).addClass('active');
$content.filter(`[tab-content="${tabName}"]`).show();
if (openToolbox) elem.addClass('open');
}
// Set the first tab content active on load
setActive($content.first().attr('tab-content'), false);
// Handle tab button click
$buttons.click(function (e) {
let name = $(this).attr('tab-button');
setActive(name, true);
});
}
}
}]);
/**
* Tag Autosuggestions
* Listens to child inputs and provides autosuggestions depending on field type
* and input. Suggestions provided by server.
*/
ngApp.directive('tagAutosuggestions', ['$http', function ($http) {
return {
restrict: 'A',
link: function (scope, elem, attrs) {
// Local storage for quick caching.
const localCache = {};
// Create suggestion element
const suggestionBox = document.createElement('ul');
suggestionBox.className = 'suggestion-box';
suggestionBox.style.position = 'absolute';
suggestionBox.style.display = 'none';
const $suggestionBox = $(suggestionBox);
// General state tracking
let isShowing = false;
let currentInput = false;
let active = 0;
// Listen to input events on autosuggest fields
elem.on('input focus', '[autosuggest]', function (event) {
let $input = $(this);
let val = $input.val();
let url = $input.attr('autosuggest');
let type = $input.attr('autosuggest-type');
// Add name param to request if for a value
if (type.toLowerCase() === 'value') {
let $nameInput = $input.closest('tr').find('[autosuggest-type="name"]').first();
let nameVal = $nameInput.val();
if (nameVal !== '') {
url += '?name=' + encodeURIComponent(nameVal);
}
}
let suggestionPromise = getSuggestions(val.slice(0, 3), url);
suggestionPromise.then(suggestions => {
if (val.length === 0) {
displaySuggestions($input, suggestions.slice(0, 6));
} else {
suggestions = suggestions.filter(item => {
return item.toLowerCase().indexOf(val.toLowerCase()) !== -1;
}).slice(0, 4);
displaySuggestions($input, suggestions);
}
});
});
// Hide autosuggestions when input loses focus.
// Slight delay to allow clicks.
let lastFocusTime = 0;
elem.on('blur', '[autosuggest]', function (event) {
let startTime = Date.now();
setTimeout(() => {
if (lastFocusTime < startTime) {
$suggestionBox.hide();
isShowing = false;
}
}, 200)
});
elem.on('focus', '[autosuggest]', function (event) {
lastFocusTime = Date.now();
});
elem.on('keydown', '[autosuggest]', function (event) {
if (!isShowing) return;
let suggestionElems = suggestionBox.childNodes;
let suggestCount = suggestionElems.length;
// Down arrow
if (event.keyCode === 40) {
let newActive = (active === suggestCount - 1) ? 0 : active + 1;
changeActiveTo(newActive, suggestionElems);
}
// Up arrow
else if (event.keyCode === 38) {
let newActive = (active === 0) ? suggestCount - 1 : active - 1;
changeActiveTo(newActive, suggestionElems);
}
// Enter or tab key
else if ((event.keyCode === 13 || event.keyCode === 9) && !event.shiftKey) {
let text = suggestionElems[active].textContent;
currentInput[0].value = text;
currentInput.focus();
$suggestionBox.hide();
isShowing = false;
if (event.keyCode === 13) {
event.preventDefault();
return false;
}
}
});
// Change the active suggestion to the given index
function changeActiveTo(index, suggestionElems) {
suggestionElems[active].className = '';
active = index;
suggestionElems[active].className = 'active';
}
// Display suggestions on a field
let prevSuggestions = [];
function displaySuggestions($input, suggestions) {
// Hide if no suggestions
if (suggestions.length === 0) {
$suggestionBox.hide();
isShowing = false;
prevSuggestions = suggestions;
return;
}
// Otherwise show and attach to input
if (!isShowing) {
$suggestionBox.show();
isShowing = true;
}
if ($input !== currentInput) {
$suggestionBox.detach();
$input.after($suggestionBox);
currentInput = $input;
}
// Return if no change
if (prevSuggestions.join() === suggestions.join()) {
prevSuggestions = suggestions;
return;
}
// Build suggestions
$suggestionBox[0].innerHTML = '';
for (let i = 0; i < suggestions.length; i++) {
var suggestion = document.createElement('li');
suggestion.textContent = suggestions[i];
suggestion.onclick = suggestionClick;
if (i === 0) {
suggestion.className = 'active'
active = 0;
}
;
$suggestionBox[0].appendChild(suggestion);
}
prevSuggestions = suggestions;
}
// Suggestion click event
function suggestionClick(event) {
let text = this.textContent;
currentInput[0].value = text;
currentInput.focus();
$suggestionBox.hide();
isShowing = false;
};
// Get suggestions & cache
function getSuggestions(input, url) {
let hasQuery = url.indexOf('?') !== -1;
let searchUrl = url + (hasQuery ? '&' : '?') + 'search=' + encodeURIComponent(input);
// Get from local cache if exists
if (typeof localCache[searchUrl] !== 'undefined') {
return new Promise((resolve, reject) => {
resolve(localCache[searchUrl]);
});
}
return $http.get(searchUrl).then(response => {
localCache[searchUrl] = response.data;
return response.data;
});
}
}
}
}]);
ngApp.directive('entitySelector', ['$http', '$sce', function ($http, $sce) {
return {
restrict: 'A',
scope: true,
link: function (scope, element, attrs) {
scope.loading = true;
scope.entityResults = false;
scope.search = '';
// Add input for forms
const input = element.find('[entity-selector-input]').first();
// Listen to entity item clicks
element.on('click', '.entity-list a', function(event) {
event.preventDefault();
event.stopPropagation();
let item = $(this).closest('[data-entity-type]');
itemSelect(item);
});
element.on('click', '[data-entity-type]', function(event) {
itemSelect($(this));
});
// Select entity action
function itemSelect(item) {
let entityType = item.attr('data-entity-type');
let entityId = item.attr('data-entity-id');
let isSelected = !item.hasClass('selected');
element.find('.selected').removeClass('selected').removeClass('primary-background');
if (isSelected) item.addClass('selected').addClass('primary-background');
let newVal = isSelected ? `${entityType}:${entityId}` : '';
input.val(newVal);
}
// Get search url with correct types
function getSearchUrl() {
let types = (attrs.entityTypes) ? encodeURIComponent(attrs.entityTypes) : encodeURIComponent('page,book,chapter');
return `/ajax/search/entities?types=${types}`;
}
// Get initial contents
$http.get(getSearchUrl()).then(resp => {
scope.entityResults = $sce.trustAsHtml(resp.data);
scope.loading = false;
});
// Search when typing
scope.searchEntities = function() {
scope.loading = true;
input.val('');
let url = getSearchUrl() + '&term=' + encodeURIComponent(scope.search);
$http.get(url).then(resp => {
scope.entityResults = $sce.trustAsHtml(resp.data);
scope.loading = false;
});
};
}
};
}]);
};