Example usage for com.google.gwt.core.client JsArray unshift

Introduction

In this page you can find the example usage for com.google.gwt.core.client JsArray unshift.

Prototype

public final native void unshift(T value) ;

Source Link

Document

Shifts a value onto the beginning of the array.

Usage

From source file:org.rstudio.studio.client.workbench.views.source.editors.text.cpp.CppCompletionRequest.java

License:Open Source License

public void updateUI(boolean autoAccept) {
    if (invalidationToken_.isInvalid())
        return;/*from   w  w w. j  av a 2  s. c o  m*/

    // if we don't have the completion list back from the server yet
    // then just ignore this (this function will get called again when
    // the request completes)
    if (completions_ == null)
        return;

    // discover text already entered
    String userTypedText = getUserTypedText();

    // build list of entries (filter on text already entered)
    JsArray<CppCompletion> filtered = JsArray.createArray().cast();
    for (int i = 0; i < completions_.length(); i++) {
        CppCompletion completion = completions_.get(i);
        String typedText = completion.getTypedText();
        if ((userTypedText.length() == 0) || typedText.startsWith(userTypedText)) {
            // be more picky for member scope completions because clang
            // returns a bunch of noise like constructors, destructors, 
            // compiler generated assignments, etc.
            if (completionPosition_.getScope() == CompletionPosition.Scope.Member) {
                if (completion.getType() == CppCompletion.VARIABLE
                        || (completion.getType() == CppCompletion.FUNCTION
                                && !typedText.startsWith("operator="))) {
                    filtered.push(completion);
                }

            } else {
                filtered.push(completion);
            }
        }
    }

    // add in snippets if they are enabled andthis is a global scope
    if (uiPrefs_.enableSnippets().getValue()
            && (completionPosition_.getScope() == CompletionPosition.Scope.Global)) {
        ArrayList<String> snippets = snippets_.getAvailableSnippets();
        for (String snippet : snippets)
            if (snippet.startsWith(userTypedText)) {
                String content = snippets_.getSnippet(snippet).getContent();
                content = content.replace("\t", "  ");
                filtered.unshift(CppCompletion.createSnippetCompletion(snippet, content));
            }
    }

    // check for no hits on explicit request
    if ((filtered.length() == 0) && explicit_) {
        showCompletionPopup("(No matches)");
    }
    // check for auto-accept
    else if ((filtered.length() == 1) && autoAccept && explicit_) {
        applyValue(filtered.get(0));
    }
    // check for one completion that's already present
    else if (filtered.length() == 1 && filtered.get(0).getTypedText() == getUserTypedText()
            && filtered.get(0).getType() != CppCompletion.SNIPPET) {
        terminate();
    } else {
        showCompletionPopup(filtered);
    }
}

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