全局变量只调用一次然后失去它们的作用域
Global Variables only Called Once then Lost their Scope
我的脚本有问题，希望能帮助我，在此先感谢，我仍在学习 javascript 并尝试每天学习一些新东西，我有一个脚本可以绘制无模式界面（调色板）和有按钮包括（选项）制作另一个新的调色板（用于选项），我将变量作为选项调色板的全局变量，但问题是全局变量只被调用一次！，并且脚本失去了全局变量范围！。
enter image description here
所以我的问题是如何使变量不失去其范围并保留在内存中？只要脚本 运行，例如，如果用户移动滑块并点击（显示警报到期选项）它仅 运行 一次然后失去范围，即使滑块也不再与用户交互并更新文本框，请测试代码以查看问题，再次感谢您的帮助或建议。
最佳
M.Hasanain
//Global Variables only Called Once then Lost their Scope!
#targetengine "session1";
var w = new Window("palette", {independent:true}); //Main Palette Windows
var findoptions = new Window("palette"); //Options Palette
function Main() {
// Check to see whether any InDesign documents are open.
// If no documents are open, display an error message.
if (app.documents.length > 0) {
var myDoc = app.activeDocument;
}else{
// No documents are open, so display an error message.
alert("No InDesign documents are open. Please open a document and try again.");
}
}
//---------------------------------------------------------
//Making Palettes Windows
//---------------------------------------------------------
#targetengine "session1";
var w = new Window("palette", {independent:true}); //Main Palette Windows
var findoptions = new Window("palette"); //Options Palette
//gqmanager is the (GREP Query Manager) outside the main Function
w.text = "Test the Connection Between Global Variables and Palettes";
w.preferredSize.width = 500;
w.alignChildren = ["center", "center"]; //"left";
w.orientation = "column"; //"row";
w.spacing = 10;
w.margins = 16;
//Parent - Input Panel Prepare
var InputPanel = w.add("panel", undefined, undefined, { name: "panel1" });
InputPanel.text = "Text Find : ";
InputPanel.preferredSize.width = 1000;
InputPanel.orientation = "row";
InputPanel.alignChildren = ["center", "center"];
InputPanel.spacing = 10;
InputPanel.margins = 16;
//Children - input Panel Inside Prepare
var myInputPanelInside = InputPanel.add("group", undefined, { name: "myInput" });
//--Adding Find What
myInputPanelInside.add("statictext", undefined, "Find What :");
//myInputPanelInside.alignment = "center";
var myGREPString = myInputPanelInside.add("edittext", undefined, "SAMPLE");
myGREPString.helpTip = "Enter Your Text"
myGREPString.characters = 20;
myGREPString.enabled = true;
myGREPString.preferredSize.width = 460;
var Button1 = myInputPanelInside.add("button", undefined, "Options");
//Parent - Radio Panel Prepare
var RadioPanel = w.add("panel", undefined, undefined, { name: "panel2" });
RadioPanel.text = "Select Desired Option : ";
RadioPanel.preferredSize.width = 1000;
RadioPanel.orientation = "row";
RadioPanel.alignChildren = ["center", "center"];
RadioPanel.spacing = 10;
RadioPanel.margins = 16;
//Children - input Panel Inside Prepare
var myRadioPanelInside = RadioPanel.add("group", undefined, { name: "myRadio" });
myRadioPanelInside.preferredSize.width = 500;
myRadioPanelInside.alignChildren = ["center", "center"];
//Adding Radio Buttons
var radio1 = myRadioPanelInside.add("radiobutton", undefined, "Option 1");
var radio2 = myRadioPanelInside.add("radiobutton", undefined, "Option 2");
var radio3 = myRadioPanelInside.add("radiobutton", undefined, "Option 3");
radio1.preferredSize.width = 200;
radio2.preferredSize.width = 200;
radio3.preferredSize.width = 200;
//Previous Default Condition
radio1.value = true;
var myButtonGroup = w.add("group");
myButtonGroup.alignment = "center";
var Button2 = myButtonGroup.add("button", undefined, "Show Alert Due Options");
var Button3 = myButtonGroup.add("button", undefined, "Exit");
Button1.onClick = function () {
CalltheFindOptions();
}
Button2.onClick = function () { Find(); };
function Find() {
doRadioButtonOpt();
}
Button3.onClick = function() {Canceled();};
function Canceled() {
ExitSure();
}
//After Drawing Interface
var a = w.show();
function ExitSure() {
var a = w.close();
exit(0);
}
//User Selection for Radio Buttons
function doRadioButtonOpt() {
myDoc = app.activeDocument;
if (radio1.value == true) {
TestVars();
}
}
function TestVars() {
#targetengine "session1";
var myDoc = app.activeDocument
var TimeMs = Number(SliderControlText.text); //Converting Text to Number
//Show Results Found as User Wish
if (DontShowResults.value == true) { //no Show only Apply
alert("you Select not to Show Results!");
}else{ //Direct Show and Apply
if (ShowResultsDirect.value == true) {
alert("you Select to Show Results in real time!");
}else{ //Show and Apply By WaitinhTime!
if (ShowResults.value == true) { //Show and Apply
alert("you Select to Show Results with Specific time!");
$.sleep(TimeMs); //Wait ms
}
}
}
alert("Do you need somthing else?, try again", "Finish Report");
}
var DontShowResults;
var ShowResultsDirect;
var ShowResults;
var SliderControlText;
var slider;
//--------------------------------------------Building the Find Options Palette-----------------------------------------//
//--------------------------------------------------------------------------------------------------------------------------------//
function CalltheFindOptions() {
#targetengine "session1";
//Find Options Window
findoptions.text = "Find Options";
//Parent - Input Panel Prepare
SelectPanel = findoptions.add("panel", undefined, undefined, { name: "panel1" });
SelectPanel.text = " Find Options : ";
SelectPanel.preferredSize.width = 1000;
SelectPanel.orientation = "row";
SelectPanel.alignChildren = ["center", "center"];
SelectPanel.spacing = 10;
SelectPanel.margins = 16;
//Children - input Panel Inside Prepare
mySelectPanelInside = SelectPanel.add("group", undefined, { name: "mySelOpt" });
DontShowResults = mySelectPanelInside.add("checkbox", undefined, "Don't Show Results");
DontShowResults.value = true; //by Default
DontShowResults.alignment = "left";
ShowResultsDirect = mySelectPanelInside.add("checkbox", undefined, "Show Results");
ShowResultsDirect.value = false; //by Default
ShowResults = mySelectPanelInside.add("checkbox", undefined, "Show Results Delayed in milliseconds(Ms) :");
ShowResults.value = false; //by Default
//Adding Slider to Control MS Time
SliderControlText = mySelectPanelInside.add ("edittext", undefined, 10, {readonly: false}); //read only prevent user Entering Nums
SliderControlText.characters = 3;
slider = mySelectPanelInside.add ("slider {minvalue: 1, maxvalue: 100, value: 10}");
//Slider Listener Plus SliderControl Text Listener
slider.onChanging = function () {SliderControlText.text = slider.value;} //Listen to Slider
var c = findoptions.show();
}
如果我对您的理解正确，您需要使用值而不是对象作为全局变量。您可以通过 onClick 事件更改全局变量的值。
这是代码的底部（代码的其余部分未更改）：
...
function TestVars() {
#targetengine "session1";
var myDoc = app.activeDocument
var TimeMs = Number(SliderControlText_text); //Converting Text to Number
//Show Results Found as User Wish
if (DontShowResults_value == true) { //no Show only Apply
alert("you Select not to Show Results!");
} else { //Direct Show and Apply
if (ShowResultsDirect_value == true) {
alert("you Select to Show Results in real time!");
} else { //Show and Apply By WaitinhTime!
if (ShowResults_value == true) { //Show and Apply
alert("you Select to Show Results with Specific time!");
$.sleep(TimeMs); //Wait ms
}
}
}
alert("Do you need somthing else?, try again", "Finish Report");
}
// values! not objects
var DontShowResults_value = true;
var ShowResultsDirect_value = false;
var ShowResults_value = false;
var SliderControlText_text = '10';
var slider_value = 10;
//--------------------------------------------Building the Find Options Palette-----------------------------------------//
//--------------------------------------------------------------------------------------------------------------------------------//
function CalltheFindOptions() {
#targetengine "session1";
//Find Options Window
findoptions.text = "Find Options";
//Parent - Input Panel Prepare
SelectPanel = findoptions.add("panel", undefined, undefined, {
name: "panel1"
});
SelectPanel.text = " Find Options : ";
SelectPanel.preferredSize.width = 1000;
SelectPanel.orientation = "row";
SelectPanel.alignChildren = ["center", "center"];
SelectPanel.spacing = 10;
SelectPanel.margins = 16;
//Children - input Panel Inside Prepare
var mySelectPanelInside = SelectPanel.add("group", undefined, {
name: "mySelOpt"
});
var DontShowResults = mySelectPanelInside.add("checkbox", undefined, "Don't Show Results");
DontShowResults.value = DontShowResults_value; //by Default
DontShowResults.alignment = "left";
// change the global variable by click
DontShowResults.onClick = function() { DontShowResults_value = DontShowResults.value }
var ShowResultsDirect = mySelectPanelInside.add("checkbox", undefined, "Show Results");
ShowResultsDirect.value = false; //by Default
// change the global variable by click
ShowResultsDirect.onClick = function() { ShowResultsDirect_value = ShowResultsDirect.value }
var ShowResults = mySelectPanelInside.add("checkbox", undefined, "Show Results Delayed in milliseconds(Ms) :");
ShowResults.value = ShowResults_value; //by Default
// change the global variable by click
ShowResults.onClick = function() { ShowResults_value = ShowResults.value }
//Adding Slider to Control MS Time
// SliderControlText = mySelectPanelInside.add("edittext", undefined, 10, {
var SliderControlText = mySelectPanelInside.add("edittext", undefined, SliderControlText_text, {
readonly: false
}); //read only prevent user Entering Nums
SliderControlText.characters = 3;
var slider = mySelectPanelInside.add("slider {minvalue: 1, maxvalue: 100, value: 10}");
// change slider every time as numbers is changes
SliderControlText.onChanging = function() {slider.value = SliderControlText.text};
//Slider Listener Plus SliderControl Text Listener
slider.onChanging = function () {
SliderControlText.text = slider.value;
// change the global variable by onChange
SliderControlText_text = SliderControlText.text;
} //Listen to Slider
findoptions.show();
}
它似乎按预期工作。
据我所知（我可能是错的），问题的原因是对象 ShowResultsDirect、ShowResultsDirect 等在您关闭调色板后立即消失。因为它们是调色板的元素。如果调色板关闭，它们将无法保留值。这就是为什么它们只有在您第一次打开调色板时才能正常工作。
我的脚本有问题，希望能帮助我，在此先感谢，我仍在学习 javascript 并尝试每天学习一些新东西，我有一个脚本可以绘制无模式界面（调色板）和有按钮包括（选项）制作另一个新的调色板（用于选项），我将变量作为选项调色板的全局变量，但问题是全局变量只被调用一次！，并且脚本失去了全局变量范围！。
enter image description here
所以我的问题是如何使变量不失去其范围并保留在内存中？只要脚本 运行，例如，如果用户移动滑块并点击（显示警报到期选项）它仅 运行 一次然后失去范围，即使滑块也不再与用户交互并更新文本框，请测试代码以查看问题，再次感谢您的帮助或建议。
最佳 M.Hasanain
//Global Variables only Called Once then Lost their Scope!
#targetengine "session1";
var w = new Window("palette", {independent:true}); //Main Palette Windows
var findoptions = new Window("palette"); //Options Palette
function Main() {
// Check to see whether any InDesign documents are open.
// If no documents are open, display an error message.
if (app.documents.length > 0) {
var myDoc = app.activeDocument;
}else{
// No documents are open, so display an error message.
alert("No InDesign documents are open. Please open a document and try again.");
}
}
//---------------------------------------------------------
//Making Palettes Windows
//---------------------------------------------------------
#targetengine "session1";
var w = new Window("palette", {independent:true}); //Main Palette Windows
var findoptions = new Window("palette"); //Options Palette
//gqmanager is the (GREP Query Manager) outside the main Function
w.text = "Test the Connection Between Global Variables and Palettes";
w.preferredSize.width = 500;
w.alignChildren = ["center", "center"]; //"left";
w.orientation = "column"; //"row";
w.spacing = 10;
w.margins = 16;
//Parent - Input Panel Prepare
var InputPanel = w.add("panel", undefined, undefined, { name: "panel1" });
InputPanel.text = "Text Find : ";
InputPanel.preferredSize.width = 1000;
InputPanel.orientation = "row";
InputPanel.alignChildren = ["center", "center"];
InputPanel.spacing = 10;
InputPanel.margins = 16;
//Children - input Panel Inside Prepare
var myInputPanelInside = InputPanel.add("group", undefined, { name: "myInput" });
//--Adding Find What
myInputPanelInside.add("statictext", undefined, "Find What :");
//myInputPanelInside.alignment = "center";
var myGREPString = myInputPanelInside.add("edittext", undefined, "SAMPLE");
myGREPString.helpTip = "Enter Your Text"
myGREPString.characters = 20;
myGREPString.enabled = true;
myGREPString.preferredSize.width = 460;
var Button1 = myInputPanelInside.add("button", undefined, "Options");
//Parent - Radio Panel Prepare
var RadioPanel = w.add("panel", undefined, undefined, { name: "panel2" });
RadioPanel.text = "Select Desired Option : ";
RadioPanel.preferredSize.width = 1000;
RadioPanel.orientation = "row";
RadioPanel.alignChildren = ["center", "center"];
RadioPanel.spacing = 10;
RadioPanel.margins = 16;
//Children - input Panel Inside Prepare
var myRadioPanelInside = RadioPanel.add("group", undefined, { name: "myRadio" });
myRadioPanelInside.preferredSize.width = 500;
myRadioPanelInside.alignChildren = ["center", "center"];
//Adding Radio Buttons
var radio1 = myRadioPanelInside.add("radiobutton", undefined, "Option 1");
var radio2 = myRadioPanelInside.add("radiobutton", undefined, "Option 2");
var radio3 = myRadioPanelInside.add("radiobutton", undefined, "Option 3");
radio1.preferredSize.width = 200;
radio2.preferredSize.width = 200;
radio3.preferredSize.width = 200;
//Previous Default Condition
radio1.value = true;
var myButtonGroup = w.add("group");
myButtonGroup.alignment = "center";
var Button2 = myButtonGroup.add("button", undefined, "Show Alert Due Options");
var Button3 = myButtonGroup.add("button", undefined, "Exit");
Button1.onClick = function () {
CalltheFindOptions();
}
Button2.onClick = function () { Find(); };
function Find() {
doRadioButtonOpt();
}
Button3.onClick = function() {Canceled();};
function Canceled() {
ExitSure();
}
//After Drawing Interface
var a = w.show();
function ExitSure() {
var a = w.close();
exit(0);
}
//User Selection for Radio Buttons
function doRadioButtonOpt() {
myDoc = app.activeDocument;
if (radio1.value == true) {
TestVars();
}
}
function TestVars() {
#targetengine "session1";
var myDoc = app.activeDocument
var TimeMs = Number(SliderControlText.text); //Converting Text to Number
//Show Results Found as User Wish
if (DontShowResults.value == true) { //no Show only Apply
alert("you Select not to Show Results!");
}else{ //Direct Show and Apply
if (ShowResultsDirect.value == true) {
alert("you Select to Show Results in real time!");
}else{ //Show and Apply By WaitinhTime!
if (ShowResults.value == true) { //Show and Apply
alert("you Select to Show Results with Specific time!");
$.sleep(TimeMs); //Wait ms
}
}
}
alert("Do you need somthing else?, try again", "Finish Report");
}
var DontShowResults;
var ShowResultsDirect;
var ShowResults;
var SliderControlText;
var slider;
//--------------------------------------------Building the Find Options Palette-----------------------------------------//
//--------------------------------------------------------------------------------------------------------------------------------//
function CalltheFindOptions() {
#targetengine "session1";
//Find Options Window
findoptions.text = "Find Options";
//Parent - Input Panel Prepare
SelectPanel = findoptions.add("panel", undefined, undefined, { name: "panel1" });
SelectPanel.text = " Find Options : ";
SelectPanel.preferredSize.width = 1000;
SelectPanel.orientation = "row";
SelectPanel.alignChildren = ["center", "center"];
SelectPanel.spacing = 10;
SelectPanel.margins = 16;
//Children - input Panel Inside Prepare
mySelectPanelInside = SelectPanel.add("group", undefined, { name: "mySelOpt" });
DontShowResults = mySelectPanelInside.add("checkbox", undefined, "Don't Show Results");
DontShowResults.value = true; //by Default
DontShowResults.alignment = "left";
ShowResultsDirect = mySelectPanelInside.add("checkbox", undefined, "Show Results");
ShowResultsDirect.value = false; //by Default
ShowResults = mySelectPanelInside.add("checkbox", undefined, "Show Results Delayed in milliseconds(Ms) :");
ShowResults.value = false; //by Default
//Adding Slider to Control MS Time
SliderControlText = mySelectPanelInside.add ("edittext", undefined, 10, {readonly: false}); //read only prevent user Entering Nums
SliderControlText.characters = 3;
slider = mySelectPanelInside.add ("slider {minvalue: 1, maxvalue: 100, value: 10}");
//Slider Listener Plus SliderControl Text Listener
slider.onChanging = function () {SliderControlText.text = slider.value;} //Listen to Slider
var c = findoptions.show();
}
如果我对您的理解正确，您需要使用值而不是对象作为全局变量。您可以通过 onClick 事件更改全局变量的值。
这是代码的底部（代码的其余部分未更改）：
...
function TestVars() {
#targetengine "session1";
var myDoc = app.activeDocument
var TimeMs = Number(SliderControlText_text); //Converting Text to Number
//Show Results Found as User Wish
if (DontShowResults_value == true) { //no Show only Apply
alert("you Select not to Show Results!");
} else { //Direct Show and Apply
if (ShowResultsDirect_value == true) {
alert("you Select to Show Results in real time!");
} else { //Show and Apply By WaitinhTime!
if (ShowResults_value == true) { //Show and Apply
alert("you Select to Show Results with Specific time!");
$.sleep(TimeMs); //Wait ms
}
}
}
alert("Do you need somthing else?, try again", "Finish Report");
}
// values! not objects
var DontShowResults_value = true;
var ShowResultsDirect_value = false;
var ShowResults_value = false;
var SliderControlText_text = '10';
var slider_value = 10;
//--------------------------------------------Building the Find Options Palette-----------------------------------------//
//--------------------------------------------------------------------------------------------------------------------------------//
function CalltheFindOptions() {
#targetengine "session1";
//Find Options Window
findoptions.text = "Find Options";
//Parent - Input Panel Prepare
SelectPanel = findoptions.add("panel", undefined, undefined, {
name: "panel1"
});
SelectPanel.text = " Find Options : ";
SelectPanel.preferredSize.width = 1000;
SelectPanel.orientation = "row";
SelectPanel.alignChildren = ["center", "center"];
SelectPanel.spacing = 10;
SelectPanel.margins = 16;
//Children - input Panel Inside Prepare
var mySelectPanelInside = SelectPanel.add("group", undefined, {
name: "mySelOpt"
});
var DontShowResults = mySelectPanelInside.add("checkbox", undefined, "Don't Show Results");
DontShowResults.value = DontShowResults_value; //by Default
DontShowResults.alignment = "left";
// change the global variable by click
DontShowResults.onClick = function() { DontShowResults_value = DontShowResults.value }
var ShowResultsDirect = mySelectPanelInside.add("checkbox", undefined, "Show Results");
ShowResultsDirect.value = false; //by Default
// change the global variable by click
ShowResultsDirect.onClick = function() { ShowResultsDirect_value = ShowResultsDirect.value }
var ShowResults = mySelectPanelInside.add("checkbox", undefined, "Show Results Delayed in milliseconds(Ms) :");
ShowResults.value = ShowResults_value; //by Default
// change the global variable by click
ShowResults.onClick = function() { ShowResults_value = ShowResults.value }
//Adding Slider to Control MS Time
// SliderControlText = mySelectPanelInside.add("edittext", undefined, 10, {
var SliderControlText = mySelectPanelInside.add("edittext", undefined, SliderControlText_text, {
readonly: false
}); //read only prevent user Entering Nums
SliderControlText.characters = 3;
var slider = mySelectPanelInside.add("slider {minvalue: 1, maxvalue: 100, value: 10}");
// change slider every time as numbers is changes
SliderControlText.onChanging = function() {slider.value = SliderControlText.text};
//Slider Listener Plus SliderControl Text Listener
slider.onChanging = function () {
SliderControlText.text = slider.value;
// change the global variable by onChange
SliderControlText_text = SliderControlText.text;
} //Listen to Slider
findoptions.show();
}
它似乎按预期工作。
据我所知（我可能是错的），问题的原因是对象 ShowResultsDirect、ShowResultsDirect 等在您关闭调色板后立即消失。因为它们是调色板的元素。如果调色板关闭，它们将无法保留值。这就是为什么它们只有在您第一次打开调色板时才能正常工作。