2 * egPrint : manage print templates, process templates, print content
5 angular.module('egCoreMod')
8 ['$q','$window','$timeout','$http','egHatch','egAuth','egIDL','egOrg','egEnv',
9 function($q , $window , $timeout , $http , egHatch , egAuth , egIDL , egOrg , egEnv) {
13 'circ.staff_client.receipt.alert_text',
14 'circ.staff_client.receipt.event_text',
15 'circ.staff_client.receipt.footer_text',
16 'circ.staff_client.receipt.header_text',
17 'circ.staff_client.receipt.notice_text'
22 service.template_base_path = 'share/print_templates/t_';
25 * context : 'default', 'receipt','label', etc.
26 * scope : data loaded into the template environment
27 * template : template name (e.g. 'checkout', 'transit_slip'
28 * content : content to print. If 'template' is set, content is
29 * derived from the template.
30 * content_type : 'text/html', 'text/plain', 'text/csv'
31 * show_dialog : boolean, if true, print dialog is shown. This setting
32 * only affects remote printers, since browser printers
33 * do not allow such control
35 service.print = function(args) {
36 if (!args) return $q.when();
39 // fetch the template, then proceed to printing
41 return service.getPrintTemplate(args.template)
42 .then(function(content) {
43 args.content = content;
44 if (!args.content_type) args.content_type = 'text/html';
45 service.getPrintTemplateContext(args.template)
46 .then(function(context) {
47 args.context = context;
48 return service.print_content(args);
54 return service.print_content(args);
57 // add commonly used attributes to the print scope
58 service.fleshPrintScope = function(scope) {
59 if (!scope) scope = {};
60 scope.today = new Date().toISOString();
63 scope.staff = egIDL.toHash(egAuth.user());
64 scope.current_location =
65 egIDL.toHash(egOrg.get(egAuth.user().ws_ou()));
68 return service.fetch_includes(scope);
71 // Retrieve org settings for receipt includes and add them
72 // to the print scope under scope.includes.<name>
73 service.fetch_includes = function(scope) {
74 // org settings for the workstation org are cached
75 // within egOrg. No need to cache them locally.
76 return egOrg.settings(service.include_settings).then(
80 angular.forEach(settings, function(val, key) {
81 // strip the settings prefix so you just have
82 // e.g. scope.includes.alert_text
83 scope.includes[key.split(/\./).pop()] = val;
89 service.last_print = {};
91 // Template has been fetched (or no template needed)
92 // Process the template and send the result off to the printer.
93 service.print_content = function(args) {
94 return service.fleshPrintScope(args.scope)
95 .then(function() { return egHatch.usePrinting(); })
96 .then(function(useHatch) {
97 var promise = useHatch ?
98 service.print_via_hatch(args) :
99 service.print_via_browser(args);
101 return promise['finally'](
102 function() { service.clear_print_content() });
106 service.print_via_hatch = function(args) {
109 if (args.content_type == 'text/html') {
110 promise = service.ingest_print_content(
111 args.content_type, args.content, args.scope
112 ).then(function(html) {
113 // For good measure, wrap the compiled HTML in container tags.
114 return "<html><body>" + html + "</body></html>";
117 // text content requires no compilation for remote printing.
118 promise = $q.when(args.content);
121 return promise.then(function(content) {
122 service.last_print.content = content;
123 service.last_print.context = args.context || 'default';
124 service.last_print.content_type = args.content_type;
125 service.last_print.show_dialog = args.show_dialog;
127 egHatch.setLocalItem('eg.print.last_printed', service.last_print);
129 return service._remotePrint();
133 service._remotePrint = function () {
134 return egHatch.remotePrint(
135 service.last_print.context,
136 service.last_print.content_type,
137 service.last_print.content,
138 service.last_print.show_dialog
142 service.print_via_browser = function(args) {
143 var type = args.content_type;
144 var content = args.content;
145 var printScope = args.scope;
147 if (type == 'text/csv' || type == 'text/plain') {
148 // preserve newlines, spaces, etc.
149 content = '<pre>' + content + '</pre>';
152 // Fetch the print CSS required for in-browser printing.
153 return $http.get(egEnv.basePath + 'css/print.css')
154 .then(function(response) {
156 // Add the bare CSS to the content
157 return '<style type="text/css" media="print">' +
162 }).then(function(content) {
164 // Ingest the content into the page DOM.
165 return service.ingest_print_content(type, content, printScope);
167 }).then(function(html) {
169 // Note browser ignores print context
170 service.last_print.content = html;
171 service.last_print.content_type = type;
172 egHatch.setLocalItem('eg.print.last_printed', service.last_print);
178 service.reprintLast = function () {
179 var last = egHatch.getLocalItem('eg.print.last_printed');
180 if (!last || !last.content) { return $q.reject(); }
182 service.last_print = last;
184 return egHatch.usePrinting().then(function(useHatch) {
187 return service._remotePrint();
189 return service.ingest_print_content(
190 null, null, null, service.last_print.content)
191 .then(function() { $window.print(); });
194 }).finally(function() { service.clear_print_content(); });
197 // loads an HTML print template by name from the server
198 // If no template is available in local/hatch storage,
199 // fetch the template as an HTML file from the server.
200 service.getPrintTemplate = function(name) {
201 var deferred = $q.defer();
203 egHatch.getItem('eg.print.template.' + name)
204 .then(function(html) {
207 // we have a locally stored template
208 deferred.resolve(html);
212 var path = service.template_base_path + name;
213 console.debug('fetching template ' + path);
215 $http.get(path).then(
216 function(data) { deferred.resolve(data.data) },
218 console.error('unable to locate print template: ' + name);
224 return deferred.promise;
227 service.storePrintTemplate = function(name, html) {
228 return egHatch.setItem('eg.print.template.' + name, html);
231 service.removePrintTemplate = function(name) {
232 return egHatch.removeItem('eg.print.template.' + name);
235 service.getPrintTemplateContext = function(name) {
236 var deferred = $q.defer();
238 egHatch.getItem('eg.print.template_context.' + name)
240 function(context) { deferred.resolve(context); },
241 function() { deferred.resolve('default'); }
244 return deferred.promise;
246 service.storePrintTemplateContext = function(name, context) {
247 return egHatch.setItem('eg.print.template_context.' + name, context);
249 service.removePrintTemplateContext = function(name) {
250 return egHatch.removeItem('eg.print.template_context.' + name);
258 * Container for inserting print data into the browser page.
259 * On insert, $window.print() is called to print the data.
260 * The div housing eg-print-container must apply the correct
261 * print media CSS to ensure this content (and not the rest
262 * of the page) is printed.
264 * NOTE: There should only ever be 1 egPrintContainer instance per page.
265 * egPrintContainer attaches functions to the egPrint service with
266 * closures around the egPrintContainer instance's $scope (including its
267 * DOM element). Having multiple egPrintContainers could result in chaos.
270 .directive('egPrintContainer', ['$compile', function($compile) {
273 scope : {}, // isolate our scope
274 link : function(scope, element, attrs) {
278 ['$scope','$q','$window','$timeout','egHatch','egPrint','egEnv',
279 function($scope , $q , $window , $timeout , egHatch , egPrint , egEnv) {
281 egPrint.clear_print_content = function() {
283 $compile($scope.elm.contents())($scope.$new(true));
286 // Insert the printable content into the DOM.
287 // For remote printing, this lets us exract the compiled HTML
289 // For local printing, this lets us print directly from the
290 // DOM with print CSS.
291 // Returns a promise reolved with the compiled HTML as a string.
293 // If a pre-compiled HTML string is provided, it's inserted
294 // as-is into the DOM for browser printing without any
295 // additional interpolation. This is useful for reprinting,
296 // previously compiled content.
297 egPrint.ingest_print_content =
298 function(type, content, printScope, compiledHtml) {
301 $scope.elm.html(compiledHtml);
302 return $q.when(compiledHtml);
305 $scope.elm.html(content);
307 var sub_scope = $scope.$new(true);
308 angular.forEach(printScope, function(val, key) {
309 sub_scope[key] = val;
312 var resp = $compile($scope.elm.contents())(sub_scope);
315 var deferred = $q.defer();
317 // give the $digest a chance to complete then resolve
318 // with the compiled HTML from our print container
319 deferred.resolve($scope.elm.html());
322 return deferred.promise;