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added UiScrollable support to -android uiautomator locator strategy
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88 changes: 88 additions & 0 deletions
88
lib/devices/android/bootstrap/src/io/appium/android/bootstrap/utils/UiAutomatorParser.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| package io.appium.android.bootstrap.utils; | ||
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| import com.android.uiautomator.core.UiSelector; | ||
| import io.appium.android.bootstrap.exceptions.UiSelectorSyntaxException; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| /** | ||
| * For parsing strings passed in for the "-android uiautomator" locator strategy | ||
| */ | ||
| public class UiAutomatorParser { | ||
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| private String text; | ||
| private List<UiSelector> selectors; | ||
| private UiScrollableParser scrollableParser = new UiScrollableParser(); | ||
| private UiSelectorParser selectorParser = new UiSelectorParser(); | ||
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| public List<UiSelector> parse(String textToParse) throws UiSelectorSyntaxException { | ||
| if (textToParse.isEmpty()) { | ||
| throw new UiSelectorSyntaxException("Tried to parse an empty string. Expected to see a string consisting of text to be interpreted as UiAutomator java code."); | ||
| } | ||
| selectors = new ArrayList<UiSelector>(); | ||
| text = textToParse.trim(); | ||
| removeTailingSemicolon(); | ||
| trimWhitespace(); | ||
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| consumeStatement(); | ||
| while (text.length() > 0) { | ||
| trimWhitespace(); | ||
| consumeSemicolon(); | ||
| trimWhitespace(); | ||
| consumeStatement(); | ||
| } | ||
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| return selectors; | ||
| } | ||
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| private void trimWhitespace() { | ||
| text = text.trim(); | ||
| } | ||
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| private void removeTailingSemicolon() { | ||
| if (text.charAt(text.length()-1) == ';') { | ||
| text = text.substring(0, text.length()-1); | ||
| } | ||
| } | ||
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| private void consumeSemicolon() throws UiSelectorSyntaxException { | ||
| if (text.charAt(0) != ';') { | ||
| throw new UiSelectorSyntaxException("Expected ';' but saw '" + text.charAt(0) +"'"); | ||
| } | ||
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| text = text.substring(1); | ||
| } | ||
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| private void consumeStatement() throws UiSelectorSyntaxException { | ||
| String statement; | ||
| int index = 0; | ||
| int parenCount = -1; // semicolons could appear inside String arguments, so we make sure we only count occurrences outside of a parenthesis pair | ||
| while (index < text.length()) { | ||
| if (text.charAt(index) == ';' && parenCount == 0) { | ||
| break; | ||
| } | ||
| if (text.charAt(index) == '(') { | ||
| if (parenCount < 0) { | ||
| parenCount = 1; | ||
| } else { | ||
| parenCount++; | ||
| } | ||
| } | ||
| if (text.charAt(index) == ')') { | ||
| parenCount--; | ||
| } | ||
| index++; | ||
| } | ||
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| statement = text.substring(0, index); | ||
| if (UiScrollableParser.isUiScrollable(statement)) { | ||
| selectors.add(scrollableParser.parse(statement)); | ||
| } else { | ||
| selectors.add(selectorParser.parse(statement)); | ||
| } | ||
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| text = text.substring(index); | ||
| } | ||
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| } |
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