I have implemented scrollable extjs tab panel in our product. But I also need to support accesskey functionality. For example, an "Alt + P" keystroke will open up one of tab. Does anyone have any experience about implementing this?
The core to this is creating a keymap to recognise you are pressing a combination of keys, once this is detected you can then add a custom handler.
See here: http://dev.sencha.com/deploy/dev/docs/?class=Ext.KeyMap
eg:
var map = new Ext.KeyMap("my-element", [
{
key: [10,13],
fn: function(){ alert("Return was pressed"); }
}, {
key: "abc",
fn: function(){ alert('a, b or c was pressed'); }
}, {
key: "\t",
ctrl:true,
shift:true,
fn: function(){ alert('Control + shift + tab was pressed.'); }
}
]);
Above are a number of sample mappings, you simply replace 'my-element' with the element you wish to look for the key presses on (so which element when selected will detect them). If you wish to have APPLICATION wide key mapping, this element should either be the body of the page, the window itself or the ExtJS Viewport (if you are using one) / Master element. This will mean you can be within any area of your application and the keypress is detected. The subsequent behaviour you define under the 'fn' property (i.e. change tab etc)...
Related
My combo uses remote query. When the user types something, the server returns matching results. However, when there are a lot of matching results, then the combo expands, loses focus and highlights the firts record returned by the server. The combo has these properties:
...
queryMode:'remote',
enableKeyEvents:true,
forceSelection:true,
...
The screen of what is going on is here:
So, as you can see, when the user typed the last character, the server returned records and for some (I think stupid) reason highlighted the first record. But what is more important there is no focus any longer and the user has to put cursor on the field again to continue typing. To solve this problem, I tried these events:
'blur':function(){
this.focus();
},
'keydown':function(){
this.focus();
},
'keypress':function(){
this.focus();
},
'keyup':function(){
this.focus();
},
But there is no effect. I also tried to use load event, but it also has no effect.
I had this issue too, for solve it use the afterQuery property in the combo.
Something like this:
afterQuery: function() {
combo.setRawValue(combo.lastQuery);
},
pd: I think this is a Bug, but i'm not sure about it...
I could solve the similar issue with focus be two actions:
Set "selectOnFocus: false"
Update doRawQuery.
doRawQuery: function() {
var me = this;
...
me.inputEl.focus();
}
If you have your overridden version (I believe you should to not change original plugin), you can do it this way to not duplicate the logic:
doRawQuery: function() {
var me = this;
me.callParent(arguments);
me.inputEl.focus();
}
xtype: 'combo',
...
listeners:{
// repair raw value after blur
blur:function() {
var val = this.getRawValue();
this.setRawValue.defer(1, this, [val]);
}
}
Look this example(thanks to Saki)
I am currently creating a web-based Mobile App using Phonegap 1.6.0 and Sencha Touch 1.1. The app consists of a number of panels through which the user can click.
Some of these panels have textfields or textareas in them. Upon entering the panel, we want these to automatically be focused. This seems to work with textfields but not with textareas.
I have a Panel with the following component:
xtype: 'textareafield',
cls: 'jasbackblock',
id: 'addreactiontextarea',
height: '100%',
grow: true,
listeners: {
afterrender: function(cmp) {
console.log('Component rendered.');
cmp.fieldEl.dom.focus();
}
Whenever I first open the panel, it automatically focuses, which is good. However, when I leave the panel and then return to it, I cannot think of a good way to do this with events.
I have previously tried the show listener in the panel:
listeners: {
show: function(cmp) {
Ext.get('addreactiontextarea').fieldEl.dom.focus();
}
}
This gives me the following error:
Uncaught TypeError: Cannot read property 'fieldEl' of null
It seems that I cannot access the element during the show event. Is there any other event that I could use which fires every time the panel is loaded and allows me to access the textarea?
If it is any help, this is the method we call to switch from one panel to another:
function switchScreen(from, to, newArgs) {
/* Save screen information. */
if (from != -1)
historyStack.push([from, screenArgs]);
if (currentPage > 2) {
if (to != 3)
main.getComponent(3).hide();
app.getComponent(currentPage - 3).hide();
}
else
main.getComponent(currentPage).hide();
screenArgs = newArgs;
if (to > 2) {
main.setActiveItem(3);
app.setActiveItem(to - 3);
/* setActiveItem does not fire a screen's show event if it has been
* shown before. Since we want the code in the screen's show listener to
* be executed every time we switch to the screen, we call show manually
* just to fire the event. */
main.getComponent(3).show();
app.getComponent(to - 3).show();
}
else {
main.setActiveItem(to);
main.getComponent(to).show();
}
if (to == 0 || to == 1)
adMode = to;
else
adMode = -1;
currentPage = to;
}
I solved the problem. The issue was that I was not quite aware of how DOM elements worked.
Ext.get('id') returns the DOM element of the Javascript Object with the id 'id'. It does not return the object itself.
Ext.getCmp('id') returns the Javascript object with the id 'id'. Therefore, Ext.getCmp('id').fieldEl returns the same object as Ext.get('id').
Because of a bug in Sencha Touch 1.1, we chose to use the DOM focus function rather than the Sencha focus function. One can access this function by either Ext.getCmp('id').fieldEl.dom.focus() or Ext.get('id').dom.focus(). As you can see in my question, I mixed these up. Because of my lack of experience with DOM elements, I became even more confused when I tried to use an Object function this way. (Ext.get('id').reset() is simply illogical.)
If you have any questions, feel free to message.
I need to get(retrieve) updated cell value in controller. (MVC)
So I tried this,
var modified = this.getItemGrid().getStore().getUpdatedRecords();
console.log(modified); // return [] empty array
var modified = this.getItemList_Store().getUpdatedRecords();
console.log(modified); // return [] empty array
but always it returns empty array even I updated some cell value.
anybody know what I am doing wrong?
Here is my part of view code,
Ext.define("App.view.orders.ItemList_view", {
extend: "Ext.grid.Panel",
alias: "widget.itemList_view",
plugins: [
Ext.create('Ext.grid.plugin.CellEditing', {
clicksToEdit: 1
})
],
initComponent: function () {
this.store = "ItemList_store";
this.columns = [
{
xtype: 'checkcolumn', text: "Ship", width: 50, dataIndex: "DR"
},
{ header: "test", width: 100, dataIndex: "test",
editor: {
xtype : 'textfield'
}
}
];
this.selModel = Ext.create("Ext.selection.CheckboxModel");
//this.selModel = Ext.create("Ext.selection.CellModel"); // It does not works either.
this.callParent(arguments);
},
.
.
.
Thank you!
[EDIT]
Thank you very much for your answer! I have some more question about editor grid.
Its much different from Ext3. so I'm very confusing now :(
Q1. How to collect edited record data (once click button)?
the event fired once the grid cell be changed.
but I want collect edited grid record once I click the 'Update edited cell' button, and I want to update all together at the once.
In Ext3, I did like this,
(button) click : function(){
var modified = mygridStore.getModifiedRecords();
var recordsToSend = [];
Ext.each(modified, function(record){
recordsToSend.push(record.data);
});
var grid = Ext.getCmp('grid');
grid.el.mask('Updating','x-mask-loading');
grid.stopEditing();
recordsToSend = Ext.encode(recordsToSend);
Ext.Ajax.request({
url : '/test/test',
params : {
data : recordsToSend
},
success : function(response){
grid.el.unmask();
alert(response.responseText);
mygridStore.commitChanges();
},
failure : function(response){
mygridStore.rejectChanges();
}
});
}
How can I change the code for Extjs4 ?
Q2. I don't know still how to find out for changed checkcolumn.
I tried this, but I does not work for checkcolumn (of cause I tested after change checkbox)
// grid coumn
{
xtype: 'checkcolumn', header: "My Check Column", width: 50, dataIndex: "CH"
}
-
// in control
'myGrid': {
validateedit: function (plugin, edit) {
console.log(edit);
},
checkchange: function (plugin, edit) {
console.log(edit);
console.log(edit.value);
}
}
Q3. When I click the cell to edit, the show some HTML tag in -_-;;
I really appreciate for your help. and thank you very much for your valuable time!
The editors (cell editors or row editors) do not commit their values to the store until you complete the edit - which means pressing ENTER or blurring the active cell editor by clicking elsewhere on the page, or clicking the save button on the row editor form .
If your purpose for reading the updated value in your editor is to perform some kind of validation I would suggest simply listening to the validateedit event in your grid's controller, as described here.
The second argument that this event passes to your handler contains a lot of data about the edit that you can then perform validation with. If the edit doesn't pass your validation you can return false from your handler and the value in the celleditor will revert to it's original value. The validateedit event gets fired from the editor grid itself so you would add an event handler in your controller for it like this:
Ext.define('MyApp.controller.MyController', {
init: function() {
this.control({
'mygridpanel': {
validateedit: function(plugin, edit) {
// silly validation function
if (edit.value != 'A Valid Value') {
return false;
}
},
},
});
},
});
But you should check out the link above to see all the different objects available in that second argument I named edit.
The validateedit event is fired right before the record is committed into the store - after the user has already clicked ENTER or blurred the editor, i.e., while the editor is closing.
If you are trying to get the celleditor's value before it starts to close, for some reason other than validation for example, you could get the active celleditor's value like this:
// myGrid is a reference to your Ext.grid.Panel instance
if (myGrid.editingPlugin.editing) {
var value = myGrid.editingPlugin.getActiveEditor().field.value
console.log('value: ' + value);
}
If there is no active editor then myGrid.editingPlugin.getActiveEditor().field would throw an error, that's why I wrapped a conditional around it.
One other point I should make, for validation in editor grids, I found that it is easiest to just put a validator config in the grid column's editor definition. That will give you all the handy validation CSS while the user is setting the field's value and alert him if there is a problem with the value before he tries to save it.
To get an idea of what I mean, try entering letters in the date column of this example. Mouse over the editor cell and you will get the error message.
EDIT
It seems I misunderstood you original question, I'll break down my answers to your questions above though,
Question 1
Once you have completed an edit (clicked ENTER or ), your call to mygridStore.getModifiedRecords() should be working fine because the record will have been committed to the store. I see that it was not working, I will cover that in a moment.
I should point out that ExtJS4 has a store.sync() method as covered here.
Instead of extracting the modified records from the store, encoding them, manually doing an ajax request to save them to the server and then manually committing them you can call this sync method and it will take care of all of these actions for you.
If you have different URLs to handle the different create, read, update, destroy operations fired off by your store's load and sync methods, you can use the store's proxy api config to map your URLs to these operations as covered here. Or you can set-up your server side controller to be able to differentiate between your store's load request (read operations default to HTTP GET) and it's sync requests (create, update and delete operations default as HTTP POST).
There could be many different ways to go about doing this on the server side, the way I usually do it is to have one SQL stored procedure for GET requests and one for POST requests for any given store. I include the store name as an extra param and then my server side controller runs the appropriate stored procedure based on whether it is a GET or a POST request.
Question 2
Cell editing doesn't support checkcolumn edits. You have to make a different handler to listen to changes on that, something like this:
checkchange: function (column, rowIndex, checked) {
var record = store.getAt(rowIndex),
state = checked ? 'checked' : 'unchecked'
console.log('The record:');
console.log(record)
console.log('Column: ' + column.dataIndex);
console.log('was just ' + state)
}
Your call to mygridStore.getModifiedRecords() should be able to pick up the check changes also however, they get committed to the grid's store right away after being checked. store.sync() would also pick up changes to checkcolumn.
Question 3
I can't completely tell what is causing that problem but it may be something strange going on with your validateedit event, your handler should be returning true or false.
As I said earlier, I misunderstood the reason you originally asked this question. I thought you were trying to do some kind of validation while an edit was in progress. Now I understand that you are trying to get all of the modified records from the store after all the editing is completed in order to save them to the database, I was thrown off because in ExtJS 4 a store is usually saved to the database with the sync method as I mentioned.
In other words, you don't need the validateedit event or checkchange event to get a list of modified records.
The actual problem you are having might be trouble with the store's getter methods (getModifiedRecords, getUpdatedRecords) in some 4.07 versions, take a look at this post and this one.
So with all that said, the best advice I can give you is 1) try out the stores sync method for saving modified data to the database and 2) upgrade to ExtJS 4.1, there were a lot of bugs that were straightened out between 4.07 and 4.1 which you should be able to take advantage of, I cut out about 75% of the overrides I was using to make things work when I switched over to 4.1.
EditedGrid.plugins[0].completeEdit();
This will make the active changes commit and call edit event also.
listeners: {
validateedit: function (editor, e) {
//console.log(editor);
var oldVal = editor.originalValue;
var newVal = editor.value;
}
}
I have a nice working Ext.grid.Panel, with column headers you can click on to "automatic" sort.
The store has "autoSync: true".
I have a button "new", when the user clicks on it, it creates an empty record without the id property:
onAddClick: function(){
this.down('#new').setDisabled(true);
var rec = new GroupeSynergies.data.Partenaire({
/* Valeurs par défaut des colonnes */
description: 'Nouveau partenaire'
});
this.store.insert(0, rec);
},
I insert the record in the #0 position, because I know that it'll be automatically synced (and that's what's happening actually).
The problem is: if you click on the "id" column, it's sorted by id asc, if you click again, reverse order.
Then you click on the button "New", it creates empty new record, sends it to the server, and gets the resulting record with the id field completed, updates the grid, but... don't take in account the sort: when it's synced, the returned id is very high and it stays on the top, no matter what the sort order is. What am I doing wrong?
Thank you very much
(PS I'm asking at stackoverflow because Sencha's forum seems to be overwhelmed)
In a similar situation, the solution I've found is to add a store.sort in the 'write' event handler of the store.
Ext.application({
(...)
launch: function() {
var myStore = this.getStore('myStore');
myStore.on('write', function(store, operation){ store.sort('id','ASC') }; );
}
});
Adapt the sorting parameter to your needs. Documentation for the 'sort' method.
If you have a writer set on the proxy of your store, the sorting will also fire for a simple "update". To avoid this situation you can test the value of the operation parameter.
Documentation for the 'write' event.
I don't know if it is the better way of doing it, it's the only one I've found for now.
Here's another solution:
Ext.define('My.data.Store', {
extend: 'Ext.data.Store',
sortOnWrite: false,
resort: function () {
var me = this;
me.doSort(me.generateComparator());
},
onProxyWrite: function (operation) {
var me = this;
if (me.sortOnWrite && operation.wasSuccessful()) {
me.resort();
}
}
});
I want to show only one GridPanel,which I dynamically add by switch click button event, in window.
var event_menu = new Ext.menu.Menu( {
id : "event_menu",
items : [ {
text : 'record1',
handler : function() {
win.add(item_list_panel);//dynamica add GridPanel to show server data
win.doLayout();
item_list_store.load();
}
}, {
text : 'record2',
handler : function() {
win.remove(item_list_panel);//I want to remove it inorder to show the item_list_panel2 and only show one panel.
win.add(item_list_panel2);
win.doLayout();
item_list_store.load();
}
} ]
});
and this menu belong to my window tbar.
when I click record win will show item_list_panel and I want to when I click record2 the item_list_panel2 will show in win and item_list_panel will hide.
If I win.remove(item_list_panel) will have an error :
c.getPositionEl().dom is undefined
How can I do it,Thanks
I can barely understand your question, but if I understand correctly you can do it several ways.
you can destroy the component directly
item_list_panel.destroy()
you can go through your items and select it by id
win.items.item('item_id').destroy()
There are also ways to remove it without completely destroying it, depends what you want to do