I'm learning how to write a chrome extension.
in most of the apis, there is a argument: tabld.
I can't understand what is it used for.
for example ,function chrome.browserAction.setIcon's description is here
I searched all over the internet and chrome extension documents, there is not even a example there, just a sample describe said:
tabId ( optional integer ) Limits the change to when a particular tab
is selected. Automatically resets when the tab is closed.
what this argument used for? can anyone give me a example of it ?
Best regards
Each tab in Chrome has unique ID which resets after browser restart. It is useful when you want to identify tabs.
In 99% cases you will be interested only in currently selected tab because it is where a user is right now. You can just pass null instead of tabId to almost any method and it would mean you want selected tab id. Same with window id - passing null usually means current window.
Otherwise you can get selected tab with chrome.tabs.getSelected, which returns tab object containing id. You can get all tabs with their ids with chrome.tabs.getAllInWindow.
Related
Trying to learn basic blue prism.
I have made an object to login to my gmail account.
It enters the page where mail id has to be entered. The email id gets entered and the next page appears where the password has to be entered. But in the writer tool it shows the following message : "Internal : Failed to perform step 1 in Write Stage 'Writer2' on page 'Initialise' - No elements match the supplied query terms"
I looked into all the most obvious bugs and I cant find anything wrong. Can someone please give any suggestions as to what the problem could be?
The specific error message you're getting indicates there's an issue with your spying of the element you're attempting a Write on.
Without knowing anything else about the way you've included/excluded certain attributes of the element you're attempting to write to, the only sound advice one could offer would be to open the Application Modeler and trial-and-error the "Match?" for each attribute until you're able to use the "Highlight" button and verify a single interface element is selected. (Usually in circumstances such as yours, the "Value" attribute of the element you've spied has its Match checkbox selected, but the value has changed since spying it, thus making it not a match.)
check if the data item you are storing the password in is of password type.
You can reset the password by going ahead with the "write" property and delete once and drag-drop again at the same place and click OK. reset the flowchart and run them again, you'll not get the error. I had faced the same issue earlier and got fixed.
It sometimes happens due to the slowness of your internet connection BP not able to read the data item info and directly moved to next steps, to fix it, you can use wait functionality and give the 8-10 sec of wait time.
Hope this helps.
stay blessed!
When spying a browser please make sure you are using HTML mode to capture the necessary Element (please note that BP only supports IE, so no Chrome or other browser!). Also, please remember that the browser page you are spying has to be launched from the Application Modeller in order to be "attached" by BP.
To cycle between modes, simply hit the Alt key after clicking "Identify" on the Application Modeller. After you have captured the correct area of the page where your password goes, uncheck all the attributes of the element that are blank and also the URL attribute (you should be left with 4 maybe 5 atributes left), then hit "Apply" and "OK". Click "Highlight" to make sure BP still finds the element of the page that you want. Then in your Process or Object canvas, use a "Write" stage and drop this element you just created in the Element field, and the password into the Value field (the value has to be between "" unless you are using a data item instead of typing it in). If you have done all this, the "Write" stage should most definitely enter the password into the password field. Good luck!
Every tab in google chrome has an id that is unique for that browsing session, even across windows. The id is automatically assigned by chrome's internals when you call chrome.tabs.create(). Can this value ever be set to zero?
My reason for this question is that I would like to do a boolean test based on the id and I need a truthy value when there is an id.
No, tab IDs start at 1 and go up from there (they're stored as SessionID instances). -1 may also be returned in some cases.
Anyone know how to get the next index number available for a Chrome bookmark? The closest I can come right now is pulling the ID of the most recently added and increasing by 1. That works until a user creates a bookmark and immediately deletes it. Then, the id index increases by 1 but most recent returns the most recent bookmark still existing and the number is incorrect.
For bookmarks created in your extension you can use the callback of chrome.bookmarks.create which returns a BookmarkTreeNode (that contains the attribute id).
For bookmarks created by the user outside of your extension (and in your extension) you can listen to chrome.bookmarks.onCreated which will both return a string id and a BookmarkTreeNode.
To get the first id (eg: the first time the extension runs) you could create a bookmark, get the id and then delete it. This might not be needed if you just want to link metadata to bookmarks, the onCreated event should be enough.
I've value prompt with ui:checkbox group
parameter: p_IsLastMonth
Name: Prompt_IsLastMonth
ItemCount: 1; UseValue:Yes, DisplayValue: LastMonth?
and two Date Prompts.
Whenever the checkbox is checked, the UseValue 'Yes' is passed to the parameter 'p_IsLastMonth'. But whenever the checkbox is left as it is, it results in an error.
Element 'selectOptions' is not valid for content model: 'All(style,defaultSelections,conditionalStyles,conditionalRender,XMLAttributes)'
I also tried giving a default value. But the default value has to be in the collection. But i want only one checkbox to be displayed.
I tried with html checkbox. But i'm not able to send the value 'either yes or no' to the parameter through javascript because however the finish button overrides the value.
Any help?
There are 2 ways you can use Parameters:
Evaluate Parameter value
Evaluate expression against Parameter value.
Either way your Parameter has some value, and no value is a kind of value. And you need to cater for empty value in some way. Eg:
If (?Parameter? <>'') then ([Selection Criteria] = 'True') Else (1=1)
OR
([Selection Criteria] = ?Parameter?) OR ?Parameter? = ''
There other ways of using parameters too. You should choose one that better suits situation and coding practices you are following.
You can use optional checkbox or text item. In Cognos 10 I get "Deselect" option under checkbox group.
Unfortunately, I don't think you can accomplish what you want to do with only one checkbox. The only way you can leave a value prompt unselected and still submit the prompt page is to make it "optional", which means no value will be passed. An option is to use two check boxes and make them "required" so that either "yes" or "no" must be selected (but this can result in both being selected, which isn't good), or preferably use a radio list with two values and "yes" as the default. There may be a javascript answer to this, but I try to avoid that as much as possible since it sometimes leaves you open to version upgrade issues. Using a radio list is your easiest option.
Well here is something that will work. I've done advanced scorecarding and dashboarding for years with Cognos and Javascript will work:
Create a real cognos parameter that has both choices you need Yes/No with no being the default. Put them perhaps in a html table somewhere off the main real-estate of the report/param canvas. Once you have the param configed you can make the size as small as you want and then make the table/checkbox invisible by turning the visible property to no. Basically the users won't see these params. Don't do box-type = non or the parameter won't even get generated. You could also wait on hidding them until we get step 3 working(Make it easier to troubleshoot).
Then create a HTML parameter that the user will use to interact with in the style that you want the users to see, and use javascript onchange events to manipulate the real hidden parameter by finding it via DOM model. You can make finding it easier by perhaps surrounding the hidden params with an HTML tag that has a unique name/ID and referencing the child items from there.
Since your cognos parameter is invisible you may not even need to use a check box... you could simply use a hidden text box that has stores Yes/No. This will make your coding simplified on the javascript until you get used to it.
Also When programming with javascript on Cognos i find using alert to echo a object's innerhtml to screen while troubleshooting to be very handy.
* One other less impressive approach if i remember right as well..
1. Leave your original cognos style checkbox alone and create another cognos prompt that is always defaulted to "-NO-" and hidden on the canvas.
2. In the expressions used to evaluate the parameters the would evaulate the concatenation values of both params and you could take logical action based on those values. So if the concatted results were "-No-" then you know the original paramater was not selected and to use "No". etc... I believe there could be a nuance to getting this to evaluate correctly in the expression editors but i have got this owrking before as well. * So i your case if the concatted results first 3 characters = "Yes" the "Yes" otherwise no.
I'm not a Notes programmer, however, for my sins, have been working on some Notes features for an in-house project recently. I need to enable/disable editing of a field depending on circumstances. It seems to me to be a fairly standard feature, I need, but I can't find any information on how to do this anywhere.
In form setup (and other field's onchange) code, something like the following:
if some requirement = true then
textField.enable = true
else
textField.enable = false
end if
I've seen other places where there's a workaround of conditionally hiding paragraphs based on some code, having 2 paragraphs with opposite hiding conditions, one with an editable field, the other with a computed field. However, I don't know enough about Notes to see how this is implemented (I can see it done on other forms, but there seem to be some 'magic' steps within Notes which I either can't see or don't get).
[EDIT]
The reply from Kerr seems to be what I'm looking for, but I still can't find out where the InputEnabled property is located. Should have said in the initial question, I'm using Notes 7.0.3.
In fairness, it doesn't matter what the circumstances are for when to enable/disable the field, it's just some boolean condition that is set, in my case only on form loading so I don't even have to worry about this changing dynamically while the form is displayed.
I've got a few issues with Notes, my largest bugbear being that it's so tied so tightly to the Designer UI, which is utter shite. I can do this sort of thing programmatically in most GUI languages (C#, Java, Delphi, even VB), but I need to open property boxes in Notes and set them correctly.
This would be OK as an optional method, but forcing you to go this way means you can only work as well as the IDE lets you in this case, and the IDE here seems to actively work against you. You can't open multiple functions/scripts, you can't swap from one script to another without going back to the menus on the left, you can't easily search the codebase for occurrences of variables/fields (and believe me, this is a major failing for me because either Notes or the internal codebase in my case seems to make a lot of use of global variables!), you can only work with fields through the property boxes that get displayed, you can't edit code in Designer while debugging through the main Notes client.
While the Java side of the coding is better than LotusScript, it's still fairly crappy (why can't you debug INTO Java code?? Why do you need to re-import JAR files for each Java class, does each class have a different CLASSPATH???). Possibly this was improved in Notes 8, I hear it's based on Eclipse. Does anyone know whether this is true or not?
It would help to hear more specifics about the 'circumstances', but the most common way to handle this is to use a hide when formula on the field you want to enable/disable.
Technically you are not enabling or disabling the field, just hiding it, but usually that works just as well.
Since there are few events to work with in Notes, developers commonly use the document refresh as the 'event' to cause the field to hide or show.
Let's assume you have two fields called TriggerField and Subject. Say also you want to disable the Subject based on a value in the TriggerField. The easiest way to do so is to set the TriggerField as a Dialog List type and check the "Refresh fields on keyword change" option. This means when the value of the dialog list changes, the entire document will get refreshed.
Then in your hide when formula for the Subject field, you specify your criteria for when to show or hide that field. Anytime field values change, followed by a refresh of the document (i.e. form), that hide when formula will be re-evaluated.
There are other ways, depending on your circumstances, to solve this problem. If you want to let the user refresh the form themselves, put a button on the form that calls the #Command([ViewRefreshFields]) command. You can add any other formulas to that button before the refresh command if you want to make other changes to the form at the same time.
Another option is to make a certain field display-only. Then create a button that runs LotusScript to allow users to change that display-only field. In the script you can propmt the user for a value, set the display-only field, and then call for a document refresh.
In ND7 and up if you want to just disable the field for input, write an appropriate formula in the InputEnabled section of the field you want to disable.
So I have two fields one called Trigger, a checkbox with the value "On" and another Subject that is a text field. When Trigger is checked I want the value Subject to be enabled.
I simply put the following formula in the Input Enabled element of the field Subject:
Trigger = "On"
I also want this to be recalculated whenever the value of Trigger changes so I select the "Refresh fields on keyword change" option on the Trigger field.
If you're stuck in an older version you need to to hide paragraphs appropriately.