如何使用 R shiny 中的 javascript 使用通用按钮 + selectInput 更改轨迹 n 的 plotly legendstatus
How to change plotly legendstatus of trace n with a generic button + selectInput through javascript in R shiny
感谢 this 上一个问题的回答，我开发了一个 plotly plot，buttons 链接到它的 legend，点击 legend 改变了 reactive variable 的状态，每个 T/F 状态都包含了 T/F 状态，因此重新呈现链接到每个 trace（数据组）的 actionbuttons。另一个 javascript 在相反的方向上做同样的事情，点击 button hides/shows trace + legend 在 plot 中的项目。
现在我希望通过新按钮+选择输入添加另一个交互
问题简述：
如何点击通用按钮 (#0),
更改 TRUE/'legendonly'
之间的图例状态切换
对于 plotly plot j (#1) 的轨迹 n，
其中 n = input$SelectTrace (#2)
通过在 actionButton
上使用 javascript + onclick 参数
0 actionButton 在此处调用了 'SwitchExt'
1 它需要针对特定的 plotly plot 因为我有多个
2 a selectInput 以痕迹作为选择
详细解释：
现在我有以下小问题：
在我的应用程序中，在另一个条件面板中，向用户显示了一组具有相同数据的不同图表：
- 用户可以选择要突出显示的轨迹，它旁边的按钮将根据 T/F 状态列表显示第一个图中的这条轨迹是否为 on/off，然后此按钮将显示 blue/red，并链接到选定的迹线。
场景：
用户选择组 n，
点击新的 actionButton 'SwitchExt'
这会触发 flipYNb_FP1(n)，
操作按钮 YNbuttons... YNb <- YNElement(n) ....
if(values$dYNbs_cyl_el[[YNb]] == TRUE) {
将导致按钮 n 改变状态。
我可以让它也改变 values$legenditems[n]，但是在我的情节代码中，values$legenditems 被包裹在 isolate({ }) 中以阻止情节在 [=24= 时重新渲染] 链接到 legend 更改它。
解决方案的概念：
基本上我认为我需要的不是直接更改 values$legenditems 列表，而是让另一块 javascript 通过 [=49= 链接到 actionButton 'switchExt' ] 并以 input$SelectTrace 作为输入，然后更改 legendstatus 类似于 javascript js1 的做法，但随后使用 document.getElementById 获取 input$SelectTrace 的值，将其变为 numeric，并更新 legendstatus。
应用程序：
library(plotly)
library(shiny)
library(htmlwidgets)
## js to link buttons to legend
js1 <- c(
"function toggleLegend(id){",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}")
## js code to link legend to buttons
js2 <- c(
"function(el, x, inputName){",
" var id = el.getAttribute('id');",
" var d3 = Plotly.d3;",
" el.on('plotly_restyle', function(evtData) {",
" var out = {};",
" d3.select('#' + id + ' g.legend').selectAll('.traces').each(function(){",
" var trace = d3.select(this)[0][0].__data__[0].trace;",
" out[trace.name] = trace.visible;",
" });",
" Shiny.setInputValue(inputName, out);",
" });",
"}")
YNElement <- function(idx){sprintf("YesNo-plot1-%d", idx)}
ui <- fluidPage(
tags$head(
tags$script(HTML(js1))
),
fluidRow(
column(2,
h5("Keep/Drop choices linked to colorscheme 1"),
uiOutput('YNbuttons')
),
column(8,
plotlyOutput("plot1")
),
column(2,
h5('Switch plot ID and shows the plot remembers the show/hide'),
actionButton(inputId = 'Switch', label = icon('refresh'), style = "color: #f7ad6e; background-color: white; border-color: #f7ad6e;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px"),
br(),
h5('New Button that does not work on legend.', style = 'font-weight:bold'),
uiOutput('newswitch'),
br(),
selectInput(inputId = 'SelectTrace', label = 'Select Trace', choices = 1:3, selected = 1)
), style = "margin-top:150px"
)
)
server <- function(input, output, session) {
values <- reactiveValues(Linked_FP1 = T, NrOfTraces = length(unique(mtcars$cyl)))
observeEvent(input$SwitchExt, {
## trying to make the user be able to switch the buttons linked to the legend on/off through another button that is in another page.
flipYNb_FP1(as.numeric(input$SelectTrace))
req(values$legenditems) ## don't run if legend items does not exist yet.
if(values$dYNbs_cyl_el[as.numeric(input$SelectTrace)]) { values$legenditems[[as.numeric(input$SelectTrace)]] <- T } else { values$legenditems[[as.numeric(input$SelectTrace)]] <- 'legendonly' } ## problem line is here...... since I need to isolate values$legenditems in the plot code
## this does not actually cause the legend to change. If I don't isolate, the plot would re-render due to the change in values$legenditems, which is not what we want
})
output$plot1 <- renderPlotly({
if(values$Linked_FP1) {colors <- c('red', 'blue', 'black') } else {colors <- c('black', 'orange', 'gray')}
p1 <- plot_ly()
p1 <- add_trace(p1, data = mtcars, x = ~disp, y = ~mpg, type = 'scatter', mode = 'markers', color = ~as.factor(cyl), colors = colors)
p1 <- layout(p1, title = 'mtcars group by cyl with switching colors')
p1 <- plotly_build(p1)
isolate({ if(values$Linked_FP1) { for(i in seq_along(p1$x$data)){ ## causes the plot to render with previous hide/show selection
p1$x$data[[i]]$visible <- values$legenditems[[p1$x$data[[i]]$name]]}
} }) ##This block is isolated because otherwise the plot will re-render when the user clicks 1 of the three buttons
p1 %>% onRender(js2, data = "tracesPlot1") ## add the javacode to extract the legend status
})
observeEvent(input$Switch, { values$Linked_FP1 <- !values$Linked_FP1 }) ## disable the link in my real app, in this dummy app it switches to plot with different id and colors that is not interactive
observeEvent(values$NrOfTraces, {
values$dYNbs_cyl_el <- rep(T,values$NrOfTraces) ## the list of Yes/No status of groups, from which the 3 buttons on the left are build blue or red
names(values$dYNbs_cyl_el) <- sapply(1:values$NrOfTraces, function(x) {YNElement(x)}) ## add names to that list
values$legenditems <- rep(T, values$NrOfTraces) ## make the legenditem list so that the app doesn't crash when user clicks switchExt without first clicking on legend items
names(values$legenditems) <- sort(unique(mtcars$cyl)) ## add names to that list
})
output$newswitch <- renderUI({
req(input$SelectTrace)
print(input$SelectTrace)
if(values$dYNbs_cyl_el[as.numeric(input$SelectTrace)]) {
actionButton(inputId = 'SwitchExt', label = icon('refresh'), style = "color: #339fff; background-color: white; border-color: #339fff;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"
)}
else { actionButton(inputId = 'SwitchExt', label = icon('refresh'), style = "color: #f7ad6e; background-color: white; border-color: #f7ad6e;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"
)}
})
observeEvent(input$tracesPlot1, {
if(values$Linked_FP1) {
listTraces <- input$tracesPlot1
values$legenditems <- listTraces ## store the list of show/hide for when the plot re-renders here
listTracesTF <- gsub('legendonly', FALSE, listTraces)
listTracesTF <- as.logical(listTracesTF)
lapply(1:values$NrOfTraces, function(el) {
if(el <= length(listTracesTF)) {
YNb <- YNElement(el)
if(values$dYNbs_cyl_el[[YNb]] != listTracesTF[el]) {
values$dYNbs_cyl_el[[YNb]] <- listTracesTF[el]
}
}
})
}
})
output$YNbuttons <- renderUI({
req(values$NrOfTraces)
lapply(1:values$NrOfTraces, function(el) {
YNb <- YNElement(el)
if(values$Linked_FP1) {
if(values$dYNbs_cyl_el[[YNb]] == TRUE) {
div(actionButton(inputId = YNb, label = icon("check"),
style = "color: #339FFF; background-color: white; border-color: #339FFF;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
} else {
div(actionButton(inputId = YNb, label = icon("times"),
style = "color: #ff4d4d; background-color: white; border-color: #ff4d4d;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
}
}
})
})
flipYNb_FP1 <- function(idx){
YNb <- YNElement(idx)
values$dYNbs_cyl_el[[YNb]] <- !values$dYNbs_cyl_el[[YNb]]
}
observe({
lapply(1:values$NrOfTraces, function(ob) {
YNElement <- YNElement(ob)
observeEvent(input[[YNElement]], {
if(!values$Linked_FP1) { flipYNb_FP1(ob) }
}, ignoreInit = T)
})
})
}
shinyApp(ui, server)
解法：
在与一些意外行为进行了一些斗争之后，我发现我需要删除 switchExt-plot1 的观察者以阻止按钮翻转两次。
observeEvent(input[['SwitchExt-plot1']], {
flipYNb_FP1(as.numeric(input$SelectTrace))
})
正在运行的应用程序是这样的：
library(plotly)
library(shiny)
library(htmlwidgets)
## js to link buttons to legend
js1 <- c(
"function toggleLegend(id){",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var index = parseInt(ids[2])-1;", ## correct as the YN buttons are named YesNo-plot1-%d
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}",
"function toggleLegend2(id){",
" var index = parseInt($('#SelectTrace').val())-1;",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}")
## js code to link legend to buttons
js2 <- c(
"function(el, x, inputName){",
" var id = el.getAttribute('id');",
" var d3 = Plotly.d3;",
" el.on('plotly_restyle', function(evtData) {",
" var out = {};",
" d3.select('#' + id + ' g.legend').selectAll('.traces').each(function(){",
" var trace = d3.select(this)[0][0].__data__[0].trace;",
" out[trace.name] = trace.visible;",
" });",
" Shiny.setInputValue(inputName, out);",
" });",
"}")
YNElement <- function(idx){sprintf("YesNo-plot1-%d", idx)}
ui <- fluidPage(
tags$head(
tags$script(HTML(js1))
),
fluidRow(
column(2,
h5("Keep/Drop choices linked to colorscheme 1"),
uiOutput('YNbuttons')
),
column(8,
plotlyOutput("plot1")
),
column(2,
h5('New Button that does not work on legend.', style = 'font-weight:bold'),
uiOutput('newswitch'),
br(),
selectInput(inputId = 'SelectTrace', label = 'Select Trace', choices = 1:3, selected = 1)
), style = "margin-top:150px"
)
)
server <- function(input, output, session) {
values <- reactiveValues(Linked_FP1 = T, NrOfTraces = length(unique(mtcars$cyl)))
output$plot1 <- renderPlotly({
if(values$Linked_FP1) {colors <- c('red', 'blue', 'black') } else {colors <- c('black', 'orange', 'gray')}
p1 <- plot_ly()
p1 <- add_trace(p1, data = mtcars, x = ~disp, y = ~mpg, type = 'scatter', mode = 'markers', color = ~as.factor(cyl), colors = colors)
p1 <- layout(p1, title = 'mtcars group by cyl with switching colors')
p1 <- plotly_build(p1)
isolate({ if(values$Linked_FP1) { for(i in seq_along(p1$x$data)){ ## causes the plot to render with previous hide/show selection
p1$x$data[[i]]$visible <- values$legenditems[[p1$x$data[[i]]$name]]}
} }) ##This block is isolated because otherwise the plot will re-render when the user clicks 1 of the three buttons
p1 %>% onRender(js2, data = "tracesPlot1") ## add the javacode to extract the legend status
})
observeEvent(values$NrOfTraces, {
values$dYNbs_cyl_el <- rep(T,values$NrOfTraces) ## the list of Yes/No status of groups, from which the 3 buttons on the left are build blue or red
names(values$dYNbs_cyl_el) <- sapply(1:values$NrOfTraces, function(x) {YNElement(x)}) ## add names to that list
values$legenditems <- rep(T, values$NrOfTraces) ## make the legenditem list so that the app doesn't crash when user clicks switchExt without first clicking on legend items
names(values$legenditems) <- sort(unique(mtcars$cyl)) ## add names to that list
})
output$newswitch <- renderUI({
req(input$SelectTrace)
if(values$dYNbs_cyl_el[as.numeric(input$SelectTrace)]) {
actionButton(inputId = 'SwitchExt-plot1', label = icon('refresh'), style = "color: #339fff; background-color: white; border-color: #339fff;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend2(this.id)")
}
else { actionButton(inputId = 'SwitchExt-plot1', label = icon('refresh'), style = "color: #f7ad6e; background-color: white; border-color: #f7ad6e;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend2(this.id)")}
})
observeEvent(input$tracesPlot1, {
if(values$Linked_FP1) {
listTraces <- input$tracesPlot1
values$legenditems <- listTraces ## store the list of show/hide for when the plot re-renders here
listTracesTF <- gsub('legendonly', FALSE, listTraces)
listTracesTF <- as.logical(listTracesTF)
lapply(1:values$NrOfTraces, function(el) {
if(el <= length(listTracesTF)) {
YNb <- YNElement(el)
if(values$dYNbs_cyl_el[[YNb]] != listTracesTF[el]) {
values$dYNbs_cyl_el[[YNb]] <- listTracesTF[el]
}
}
})
}
})
output$YNbuttons <- renderUI({
req(values$NrOfTraces)
lapply(1:values$NrOfTraces, function(el) {
YNb <- YNElement(el)
if(values$Linked_FP1) {
if(values$dYNbs_cyl_el[[YNb]] == TRUE) {
div(actionButton(inputId = YNb, label = icon("check"),
style = "color: #339FFF; background-color: white; border-color: #339FFF;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
} else {
div(actionButton(inputId = YNb, label = icon("times"),
style = "color: #ff4d4d; background-color: white; border-color: #ff4d4d;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
}
}
})
})
flipYNb_FP1 <- function(idx){
YNb <- YNElement(idx)
values$dYNbs_cyl_el[[YNb]] <- !values$dYNbs_cyl_el[[YNb]]
}
observe({
lapply(1:values$NrOfTraces, function(ob) {
YNElement <- YNElement(ob)
observeEvent(input[[YNElement]], {
if(!values$Linked_FP1) { flipYNb_FP1(ob) }
}, ignoreInit = T)
})
})
}
shinyApp(ui, server)
图片支持评论：
我不确定我是否理解，但让我们从一些事情开始吧。
js1 <- c(
"function toggleLegend(id){",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var index = parseInt(ids[2])-1;",
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}",
"function toggleLegend2(){",
" var index = parseInt($('#SelectTrace').val())-1;",
" var plot = document.getElementById('plot1');",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}")
actionButton(inputId = 'SwitchExt', ......, onclick = "toggleLegend2()")
是你想要的吗？
感谢 this 上一个问题的回答，我开发了一个 plotly plot，buttons 链接到它的 legend，点击 legend 改变了 reactive variable 的状态，每个 T/F 状态都包含了 T/F 状态，因此重新呈现链接到每个 trace（数据组）的 actionbuttons。另一个 javascript 在相反的方向上做同样的事情，点击 button hides/shows trace + legend 在 plot 中的项目。
现在我希望通过新按钮+选择输入添加另一个交互
问题简述：
如何点击通用按钮 (#0),
更改 TRUE/'legendonly'
之间的图例状态切换
对于 plotly plot j (#1) 的轨迹 n，
其中 n = input$SelectTrace (#2)
通过在 actionButton
javascript + onclick 参数
0 actionButton 在此处调用了 'SwitchExt'
1 它需要针对特定的 plotly plot 因为我有多个
2 a selectInput 以痕迹作为选择
详细解释：
现在我有以下小问题： 在我的应用程序中，在另一个条件面板中，向用户显示了一组具有相同数据的不同图表： - 用户可以选择要突出显示的轨迹，它旁边的按钮将根据 T/F 状态列表显示第一个图中的这条轨迹是否为 on/off，然后此按钮将显示 blue/red，并链接到选定的迹线。
场景：
用户选择组 n，
点击新的 actionButton 'SwitchExt'
这会触发 flipYNb_FP1(n)，
操作按钮 YNbuttons... YNb <- YNElement(n) ....
if(values$dYNbs_cyl_el[[YNb]] == TRUE) {
将导致按钮 n 改变状态。
我可以让它也改变 values$legenditems[n]，但是在我的情节代码中，values$legenditems 被包裹在 isolate({ }) 中以阻止情节在 [=24= 时重新渲染] 链接到 legend 更改它。
解决方案的概念：
基本上我认为我需要的不是直接更改 values$legenditems 列表，而是让另一块 javascript 通过 [=49= 链接到 actionButton 'switchExt' ] 并以 input$SelectTrace 作为输入，然后更改 legendstatus 类似于 javascript js1 的做法，但随后使用 document.getElementById 获取 input$SelectTrace 的值，将其变为 numeric，并更新 legendstatus。
应用程序：
library(plotly)
library(shiny)
library(htmlwidgets)
## js to link buttons to legend
js1 <- c(
"function toggleLegend(id){",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}")
## js code to link legend to buttons
js2 <- c(
"function(el, x, inputName){",
" var id = el.getAttribute('id');",
" var d3 = Plotly.d3;",
" el.on('plotly_restyle', function(evtData) {",
" var out = {};",
" d3.select('#' + id + ' g.legend').selectAll('.traces').each(function(){",
" var trace = d3.select(this)[0][0].__data__[0].trace;",
" out[trace.name] = trace.visible;",
" });",
" Shiny.setInputValue(inputName, out);",
" });",
"}")
YNElement <- function(idx){sprintf("YesNo-plot1-%d", idx)}
ui <- fluidPage(
tags$head(
tags$script(HTML(js1))
),
fluidRow(
column(2,
h5("Keep/Drop choices linked to colorscheme 1"),
uiOutput('YNbuttons')
),
column(8,
plotlyOutput("plot1")
),
column(2,
h5('Switch plot ID and shows the plot remembers the show/hide'),
actionButton(inputId = 'Switch', label = icon('refresh'), style = "color: #f7ad6e; background-color: white; border-color: #f7ad6e;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px"),
br(),
h5('New Button that does not work on legend.', style = 'font-weight:bold'),
uiOutput('newswitch'),
br(),
selectInput(inputId = 'SelectTrace', label = 'Select Trace', choices = 1:3, selected = 1)
), style = "margin-top:150px"
)
)
server <- function(input, output, session) {
values <- reactiveValues(Linked_FP1 = T, NrOfTraces = length(unique(mtcars$cyl)))
observeEvent(input$SwitchExt, {
## trying to make the user be able to switch the buttons linked to the legend on/off through another button that is in another page.
flipYNb_FP1(as.numeric(input$SelectTrace))
req(values$legenditems) ## don't run if legend items does not exist yet.
if(values$dYNbs_cyl_el[as.numeric(input$SelectTrace)]) { values$legenditems[[as.numeric(input$SelectTrace)]] <- T } else { values$legenditems[[as.numeric(input$SelectTrace)]] <- 'legendonly' } ## problem line is here...... since I need to isolate values$legenditems in the plot code
## this does not actually cause the legend to change. If I don't isolate, the plot would re-render due to the change in values$legenditems, which is not what we want
})
output$plot1 <- renderPlotly({
if(values$Linked_FP1) {colors <- c('red', 'blue', 'black') } else {colors <- c('black', 'orange', 'gray')}
p1 <- plot_ly()
p1 <- add_trace(p1, data = mtcars, x = ~disp, y = ~mpg, type = 'scatter', mode = 'markers', color = ~as.factor(cyl), colors = colors)
p1 <- layout(p1, title = 'mtcars group by cyl with switching colors')
p1 <- plotly_build(p1)
isolate({ if(values$Linked_FP1) { for(i in seq_along(p1$x$data)){ ## causes the plot to render with previous hide/show selection
p1$x$data[[i]]$visible <- values$legenditems[[p1$x$data[[i]]$name]]}
} }) ##This block is isolated because otherwise the plot will re-render when the user clicks 1 of the three buttons
p1 %>% onRender(js2, data = "tracesPlot1") ## add the javacode to extract the legend status
})
observeEvent(input$Switch, { values$Linked_FP1 <- !values$Linked_FP1 }) ## disable the link in my real app, in this dummy app it switches to plot with different id and colors that is not interactive
observeEvent(values$NrOfTraces, {
values$dYNbs_cyl_el <- rep(T,values$NrOfTraces) ## the list of Yes/No status of groups, from which the 3 buttons on the left are build blue or red
names(values$dYNbs_cyl_el) <- sapply(1:values$NrOfTraces, function(x) {YNElement(x)}) ## add names to that list
values$legenditems <- rep(T, values$NrOfTraces) ## make the legenditem list so that the app doesn't crash when user clicks switchExt without first clicking on legend items
names(values$legenditems) <- sort(unique(mtcars$cyl)) ## add names to that list
})
output$newswitch <- renderUI({
req(input$SelectTrace)
print(input$SelectTrace)
if(values$dYNbs_cyl_el[as.numeric(input$SelectTrace)]) {
actionButton(inputId = 'SwitchExt', label = icon('refresh'), style = "color: #339fff; background-color: white; border-color: #339fff;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"
)}
else { actionButton(inputId = 'SwitchExt', label = icon('refresh'), style = "color: #f7ad6e; background-color: white; border-color: #f7ad6e;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"
)}
})
observeEvent(input$tracesPlot1, {
if(values$Linked_FP1) {
listTraces <- input$tracesPlot1
values$legenditems <- listTraces ## store the list of show/hide for when the plot re-renders here
listTracesTF <- gsub('legendonly', FALSE, listTraces)
listTracesTF <- as.logical(listTracesTF)
lapply(1:values$NrOfTraces, function(el) {
if(el <= length(listTracesTF)) {
YNb <- YNElement(el)
if(values$dYNbs_cyl_el[[YNb]] != listTracesTF[el]) {
values$dYNbs_cyl_el[[YNb]] <- listTracesTF[el]
}
}
})
}
})
output$YNbuttons <- renderUI({
req(values$NrOfTraces)
lapply(1:values$NrOfTraces, function(el) {
YNb <- YNElement(el)
if(values$Linked_FP1) {
if(values$dYNbs_cyl_el[[YNb]] == TRUE) {
div(actionButton(inputId = YNb, label = icon("check"),
style = "color: #339FFF; background-color: white; border-color: #339FFF;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
} else {
div(actionButton(inputId = YNb, label = icon("times"),
style = "color: #ff4d4d; background-color: white; border-color: #ff4d4d;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
}
}
})
})
flipYNb_FP1 <- function(idx){
YNb <- YNElement(idx)
values$dYNbs_cyl_el[[YNb]] <- !values$dYNbs_cyl_el[[YNb]]
}
observe({
lapply(1:values$NrOfTraces, function(ob) {
YNElement <- YNElement(ob)
observeEvent(input[[YNElement]], {
if(!values$Linked_FP1) { flipYNb_FP1(ob) }
}, ignoreInit = T)
})
})
}
shinyApp(ui, server)
解法： 在与一些意外行为进行了一些斗争之后，我发现我需要删除 switchExt-plot1 的观察者以阻止按钮翻转两次。
observeEvent(input[['SwitchExt-plot1']], {
flipYNb_FP1(as.numeric(input$SelectTrace))
})
正在运行的应用程序是这样的：
library(plotly)
library(shiny)
library(htmlwidgets)
## js to link buttons to legend
js1 <- c(
"function toggleLegend(id){",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var index = parseInt(ids[2])-1;", ## correct as the YN buttons are named YesNo-plot1-%d
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}",
"function toggleLegend2(id){",
" var index = parseInt($('#SelectTrace').val())-1;",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}")
## js code to link legend to buttons
js2 <- c(
"function(el, x, inputName){",
" var id = el.getAttribute('id');",
" var d3 = Plotly.d3;",
" el.on('plotly_restyle', function(evtData) {",
" var out = {};",
" d3.select('#' + id + ' g.legend').selectAll('.traces').each(function(){",
" var trace = d3.select(this)[0][0].__data__[0].trace;",
" out[trace.name] = trace.visible;",
" });",
" Shiny.setInputValue(inputName, out);",
" });",
"}")
YNElement <- function(idx){sprintf("YesNo-plot1-%d", idx)}
ui <- fluidPage(
tags$head(
tags$script(HTML(js1))
),
fluidRow(
column(2,
h5("Keep/Drop choices linked to colorscheme 1"),
uiOutput('YNbuttons')
),
column(8,
plotlyOutput("plot1")
),
column(2,
h5('New Button that does not work on legend.', style = 'font-weight:bold'),
uiOutput('newswitch'),
br(),
selectInput(inputId = 'SelectTrace', label = 'Select Trace', choices = 1:3, selected = 1)
), style = "margin-top:150px"
)
)
server <- function(input, output, session) {
values <- reactiveValues(Linked_FP1 = T, NrOfTraces = length(unique(mtcars$cyl)))
output$plot1 <- renderPlotly({
if(values$Linked_FP1) {colors <- c('red', 'blue', 'black') } else {colors <- c('black', 'orange', 'gray')}
p1 <- plot_ly()
p1 <- add_trace(p1, data = mtcars, x = ~disp, y = ~mpg, type = 'scatter', mode = 'markers', color = ~as.factor(cyl), colors = colors)
p1 <- layout(p1, title = 'mtcars group by cyl with switching colors')
p1 <- plotly_build(p1)
isolate({ if(values$Linked_FP1) { for(i in seq_along(p1$x$data)){ ## causes the plot to render with previous hide/show selection
p1$x$data[[i]]$visible <- values$legenditems[[p1$x$data[[i]]$name]]}
} }) ##This block is isolated because otherwise the plot will re-render when the user clicks 1 of the three buttons
p1 %>% onRender(js2, data = "tracesPlot1") ## add the javacode to extract the legend status
})
observeEvent(values$NrOfTraces, {
values$dYNbs_cyl_el <- rep(T,values$NrOfTraces) ## the list of Yes/No status of groups, from which the 3 buttons on the left are build blue or red
names(values$dYNbs_cyl_el) <- sapply(1:values$NrOfTraces, function(x) {YNElement(x)}) ## add names to that list
values$legenditems <- rep(T, values$NrOfTraces) ## make the legenditem list so that the app doesn't crash when user clicks switchExt without first clicking on legend items
names(values$legenditems) <- sort(unique(mtcars$cyl)) ## add names to that list
})
output$newswitch <- renderUI({
req(input$SelectTrace)
if(values$dYNbs_cyl_el[as.numeric(input$SelectTrace)]) {
actionButton(inputId = 'SwitchExt-plot1', label = icon('refresh'), style = "color: #339fff; background-color: white; border-color: #339fff;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend2(this.id)")
}
else { actionButton(inputId = 'SwitchExt-plot1', label = icon('refresh'), style = "color: #f7ad6e; background-color: white; border-color: #f7ad6e;
height: 40px; width: 40px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend2(this.id)")}
})
observeEvent(input$tracesPlot1, {
if(values$Linked_FP1) {
listTraces <- input$tracesPlot1
values$legenditems <- listTraces ## store the list of show/hide for when the plot re-renders here
listTracesTF <- gsub('legendonly', FALSE, listTraces)
listTracesTF <- as.logical(listTracesTF)
lapply(1:values$NrOfTraces, function(el) {
if(el <= length(listTracesTF)) {
YNb <- YNElement(el)
if(values$dYNbs_cyl_el[[YNb]] != listTracesTF[el]) {
values$dYNbs_cyl_el[[YNb]] <- listTracesTF[el]
}
}
})
}
})
output$YNbuttons <- renderUI({
req(values$NrOfTraces)
lapply(1:values$NrOfTraces, function(el) {
YNb <- YNElement(el)
if(values$Linked_FP1) {
if(values$dYNbs_cyl_el[[YNb]] == TRUE) {
div(actionButton(inputId = YNb, label = icon("check"),
style = "color: #339FFF; background-color: white; border-color: #339FFF;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
} else {
div(actionButton(inputId = YNb, label = icon("times"),
style = "color: #ff4d4d; background-color: white; border-color: #ff4d4d;height: 34px; width: 34px; border-radius: 6px; border-width: 2px; text-align: center; line-height: 50%; padding: 0px; display:block; margin: 2px",
onclick = "toggleLegend(this.id);"))
}
}
})
})
flipYNb_FP1 <- function(idx){
YNb <- YNElement(idx)
values$dYNbs_cyl_el[[YNb]] <- !values$dYNbs_cyl_el[[YNb]]
}
observe({
lapply(1:values$NrOfTraces, function(ob) {
YNElement <- YNElement(ob)
observeEvent(input[[YNElement]], {
if(!values$Linked_FP1) { flipYNb_FP1(ob) }
}, ignoreInit = T)
})
})
}
shinyApp(ui, server)
图片支持评论：
我不确定我是否理解，但让我们从一些事情开始吧。
js1 <- c(
"function toggleLegend(id){",
" var ids = id.split('-');",
" var plotid = ids[1];",
" var index = parseInt(ids[2])-1;",
" var plot = document.getElementById(plotid);",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}",
"function toggleLegend2(){",
" var index = parseInt($('#SelectTrace').val())-1;",
" var plot = document.getElementById('plot1');",
" var data = plot.data;",
" var v0 = data[index].visible || true;",
" var v = v0 == true ? 'legendonly' : true;",
" Plotly.restyle(plot, {visible: v}, [index]);",
"}")
actionButton(inputId = 'SwitchExt', ......, onclick = "toggleLegend2()")
是你想要的吗？