From the documentation, it says I can have a collaborative list which contains other collaborative objects, namely another collaborative list. Therefore in my "onFileLoaded" event, I have the following code:
var myRoot = doc.getModel().getRoot().get('myList');
var newList = doc.getModel().createList();
newList.push('Level2');
myRoot.push(newList);
I understand that everytime I reload the file, a new list will be added to "myList". Everything works fine except when I reload the document, that's when the API will only give me "myList" and the "newList" is gone and disappeared into thin air. If I add a string or any other data, the data will persist when I reload the document, but not adding another list to the current list. What am I doing wrong? Thanks in advance.
I am not sure why the above does not work for me, but when I moved the list adding codes out of "onFileLoaded", specifically, adding list to lists only when I click on some DOM element, everything works fine. I supposed these codes should be out of "onFileLoaded" anyways, so it's all good and hopefully someone find these useful.
Related
I have a site using Google map but is now having pins disappear. The code that create the pins are valid and have already been tested. From the inspector, they all seem to be pointing to the a.xa.Fa property in http://maps.gstatic.com/intl/en_us/mapfiles/api-3/13/9/main.js which I believe is injected (as I have included no such script).
I'm quite desperate and have no idea what to do with it. So any input is appreciated.
You try to add markers without supplying a proper pin-argument to add(), therefore the creation of new google.maps.MarkerImage(pin) will fail in add().
This happens the first time at the 6th marker(that's why you see only 5 markers, the error will stop the script-execution at this point).
Solution: you may either fix it(supply a proper pin-argument), there is also a LatLng of 0,0 provided, I guess something went wrong with your data.
or add this to the begin of add() to have a default-pin for these situations:
pin=pin||'http://www.mychinaroots.com/wp-content/themes/mychinaroots/images/8-default.png';
I'm trying to grab a table from the following webpage
http://www.bloomberg.com/markets/companies/country/hong-kong/
I have some sample code which was kindly provided by Phil Bozak here:
grabbing table from html using Google script
which grabs the table for this website:
http://www.airchina.com.cn/www/en/html/index/ir/traffic/
As you can see from Phil's code, there is alot of "getElement()" in the code. If i look at the html code for the Air China website. It looks like it's nested four times? that's why the string of .getElement?
Now I look at the source code for the Bloomberg page and its is load with "div"...
the question is can someone show me how to grab the table from this the Bloomberg page?
and just a brief explanation of the theory also would be useful. Thanks a bunch.
Let's flip your question upside down, and start with the theory. Methodology might be a better word for it.
You want to get at something specific in a structured page. To do that, you either need a way to zap right to the element (which can be done if it's labeled in a unique way that we can access), OR you need to navigate the structure more-or-less manually. You already know how to look at the source of a page, so you're familiar with this step. Here's a screenshot of Firefox Inspector, highlighting the element we're interested in.
We can see the hierarchy of elements that lead to the table: html, body, div, div, div.ticker, table.ticker_data. We can also see the source:
<table class="ticker_data">
Neat! It's labeled! Unfortunately, that class info gets dropped when we process the HTML in our script. Bummer. If it was id="ticker_data" instead, we could use the getElementByVal() utility from this answer to reach it, and give ourselves some immunity from future restructuring of the page. Put a pin in that - we'll come back to it.
It can help to visualize this in the debugger. Here's a utility script for that - run it in debug mode, and you'll have your HTML document laid out to explore:
/**
* Debug-run this in the editor to be able to explore the structure of web pages.
*
* Set target to the page you're interested in.
*/
function pageExplorer() {
var target = "http://www.bloomberg.com/markets/companies/country/hong-kong/";
var pageTxt = UrlFetchApp.fetch(target).getContentText();
var pageDoc = Xml.parse(pageTxt,true);
debugger; // Pause in debugger - explore pageDoc
}
This is what our page looks like in the debugger:
You might be wondering what the numbered elements are, since you don't see them in the source. When there are multiples of an element type at the same level in an XML document, the parser presents them as an array, numbered 0..n. Thus, when we see 0 under a div in the debugger, that's telling us that there are multiple <div> tags in the HTML source at that level, and we can access them as an array, for example .div[0].
Ok, theory behind us, let's go ahead and see how we can access the table by brute-force.
Knowing the hierarchy, including the div arrays shown in the debugger, we could do this, ala Phil's previous answer. I'll do some weird indenting to illustrate the document structure:
...
var target = "http://www.bloomberg.com/markets/companies/country/hong-kong/";
var pageTxt = UrlFetchApp.fetch(target).getContentText();
var pageDoc = Xml.parse(pageTxt,true);
var table = pageDoc.getElement()
.getElement("body")
.getElements("div")[0] // 0-th div under body, shown in debugger
.getElements("div")[5] // 5-th div under there
.getElement("div") // another div
.getElement("table"); // finally, our table
As a much more compact alternative to all those .getElement() calls, we can navigate using dot notation.
var table = pageDoc.getElement().body.div[0].div[5].div.table;
And that's that.
Let's go back to that pinned idea. In the debugger, we can see that there are various attributes attached to elements. In particular, there's an "id" on that div[5] that contains the div that contains the table. Remember, in the source we saw "class" attributes, but note that they don't make it this far.
Still, the fact that a kindly programmer put this "id" in place means we can do this, with getDivById() from that earlier question:
var contentDiv = getDivById( pageDoc.getElement().body, 'content' );
var table = contentDiv.div.table;
If they move things around, we might still be able to find that table, without changing our code.
You already know what to do once you have the table element, so we're done here!
I am stuck at what seems to be a simple thing to do,
I am new to the whole Sencha touch environment and still need to get my head around a lot of things.
here is the issue Im facing,
I have built the gettingStarted app from Sencha homepage, this app is simple where it loads a list from JSON data & on clicking the item in the list, it shows the HTML content of the chosen item
What Im trying to do is create another list so that
1- List one loads on startup
2- On clicking an item in List 1, it loads another list 2
3- on cicking the list 2, it loads the HTML content.
I have written webservice to return data as JSON based on which I would like to build the second list.
Im calling a function "showPost" on itemTap and it looks like this:
showPost: function(list, index, element, record){
Ext.Ajax.request({
url: 'http://localhost/mobig/ws/search.php?cat='+record.get('category'),
success: function(response){
var text = response.responseText;
var responses = Ext.JSON.decode(response.responseText);
alert(responses.posts[0].title);
}
});
I also have, this:
this.getBlog().setData({
xtype:'panel',
title:record.get('category'),
html:'<img src='+record.get('imageURL')+'/>',
scrollable:true,
styleHTMLContent:true
});
}
which loads the HTML content from List 1.
Thanks for your help in advance, and sorry about the bad english,
If you can point me to some examples, It will be a good place to learn.
Thanks!
Mo.
The most convenient way to save your time is to use Ext.NestedList, but I don't recommend it because currently nested list performance in Sencha Touch 2 is still so terrible (scrolling, event catching, etc.), if you care more about performance, you should use 2 seperated Ext.List, for eg. list_one with store_one and list_two with store_two, when list_one fires itemtap event, catch record parameter and process it (maybe through reading a TreeStore, or write your own API such as http://yourdomain/api=get_list_two&record_from_list_one=record)
Hope it helps.
It sounds like you want to set up a nested list. Here's the nested list tutorial, which should point you in the right direction.
I am developing an Windows Forms application using VB.NET that offers the user to lookup addresses on Google Maps through a Web Browser. I can also successfully show the directions between two points to the user, as well as allow the user to drag the route as he/she pleases. My question now is - is it possible for me to get the lattitude/longitude information of the route, i.e. the overview_polyline array of encoded lattitude/longitude points and save it to e.g. a text file on my computer? Or is it possible to get a list of all the addresses located both sides of the route over the entire length of the route, and then save the data to a file on my computer? I'm using HTML files to access and display the Google Maps data in the Web Browser item.
Thank you
This is actually pretty simple if your just looking for the screen coordinates.
// this probably should be in your form initialization
this.MouseClick += new MouseEventHandler(MouseClickEvent);
void MouseClickEvent(object sender, MouseEventArgs e)
{
// do whatever you need with e.Location
}
if your strictly looking for the point in the browser, you need to consider the functions
browser.PointToClient();
browser.PointToScreen();
So, this method is usable if you know exactly where your form is (easy to get its coords) and where you webbrowser control is (easy to get coords of this as well since it's just a control in your form) and then, as long as you know how many pixels from the left or right, and from the top or bottom the image will be displayed, once you get the global mouse click coords (which is easy) you can predict where it was clicked on the image.
Alternatively, there are some scarier or uglier ways to do it here...
You can use the ObjectForScripting property to embed code to do this in the webbrowser. It's ugly to say the least. MSDN has some documentation on the process here: http://msdn.microsoft.com/en-us/library/system.windows.forms.webbrowser.objectforscripting.aspx
Because its really ugly, maybe a better solution is to use AxWebBrowser - it's ugly too but not so scary.
In addition, I found this post of someone wanting to do it on a pdf document, and a MSFT person saying its not possible, but really what he is trying to say is that it isn't built in, even with a pdf document its still possible to predict with high to certain accuracy where it was clicked if you use the first method i described. Here is the post anyway: http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/2c41b74a-d140-4533-9009-9fcb382dcb60
However, it is possible, and there are a few ways to do it, so don't get scared from that last link I gave ya.
Also, this post may help if you want to do it in javascript:
http://www.devx.com/tips/Tip/29285
Basically, you can add an attribute on the image through methods available in the webbrowser control, you can add something like onclick="GetCoords();" so when it is clicked, the JavaScript function will get the coords, and then you can use javascript to place the values in a hidden input field (input type="hidden") which you can add through the webbrowser control, or if there is one already on the page, you can use that. So, once you place the coords using javacript into that input field, you can easily grab the value in that using the webbrowser control, eg:
webbrowser1.document.getElementById("myHiddenInputField").value
That will get the value in that field, which you've set through JavaScript. Also, the "GetCoords()" function i mentioned is called SetValues() in the javascript method link i provided above (in the devx.com site) but I named it GetCoords because it makes more sense and didn't want to confuse you with the actual name they used, you can change this to any name you want of course. Here is the javascript they were using, this only gets the coords into a variable, doesn't put it into a hidden input field, we will need to do that in addition (at the end of the javascript SetValues/GetCoords function).
function SetValues()
{
var s = 'X=' + window.event.clientX + ' Y=' + window.event.clientY ;
document.getElementById('divCoord').innerText = s;
}
These guys are just saving it inside a div element, which is visible to users, but you can make the div invisible if you want to use a div field, there is no advantage or disadvantage in doing that, you would just need to set the visible property to false using javascript or css, but still, it is easier to use a hidden input field so you don't need to mess with any of that.
Let me know how you get along.
I've got a plain-vanilla google maps widget sitting in a page and I'd like it if the driving directions opened up in a new window instead of taking over the current window. Is there a setting for this?
The driving directions go into whatever HTML element you specify as the second argument when you construct the GDirections object. So I guess that means you'd have to create the window before you create the GDirections object, which is likely not what you want.
The other thing that jumps out, looking at the documentation, is that you can call the load() method with the option getSteps = true. It's not clear what the "steps" data looks like, but I assume it essentially comes back as an HTML string. (Actually, it's not even clear how you get the data in the first place, but I assume it's GDirections.getSteps() or something similar.) So then when the "load" event happens, you can create the new window then put the "steps" data in it.